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SEO, SEA, SMO, SEM: Reach your audience in new ways

March 29, 2021 admin 0 Comments

Most entrepreneurs know SEO. However, do you know what SEM and SEA are? Should we work even harder in that field? Are there more actions that require time and effort, or can we still focus on our core business?

Fortunately, the latter is true. The difference is not that big in practice, and I will explain that in this blog. In my research, I have also found a difference in how marketers view SEO and SEA. One says SEA is better than SEO, and one says you should invest in both. I will summarize their views, so you can get a better perspective and decide for yourself.

sem vs seo vs sea vs smo

Two basic ways of showing up in search engines

In order to understand the concepts, you must remember that there are two basic ways to show up in search results.Danny Sullivan explains them:

  1. Editorial/Organic/Natural Listings: Any good search engine has “editorial” or “organic” or “natural” listings, which are listings that appear without anyone paying for them. They are provided as a core product of that search engine, in the same way that a newspaper has a core product of writing stories about topics it believes are of interest to its readers, rather than to its advertisers.
  2. Paid Search/CPC/PPC Listings: Search engines also have paid search ads, sometimes referred to as “CPC” or “PPC” listings. Those acronyms come from the way advertisers are charged for these ads, on a Cost-Per-Click or Pay-Per-Click basis. If you pay, you are listed. When you stop paying, your listing goes away. Similar to newspapers, these ads typically appear alongside — but separate from — editorial content. They are also not supposed to influence the editorial coverage.

SEO, SEM, and SEA – What do they mean?

Here, I explain the terms SEO, SEM, and SEA using Danny Sullivan’s blog and a blog by SEO Reloaded.

SEO (search engine optimization)

SEO has been the term used for gaining natural listings as well as for people or companies who do such work. SEO is an acceptable practice that search engines actively encourage. In the search world, SEO is equal to PR in the “real” world. Good SEO cannot guarantee good search engine “coverage,” any more than good PR can guarantee a favorable newspaper article. Nevertheless, it can increase the odds, if done within acceptable boundaries.

SEA (search engine advertising)

SEA is a technique of gaining traffic to a website through paid advertising like Google Adwords or PPC (Pay-per-Click advertising).

SEM (search engine marketing)

SEM is a powerful advertising channel. It is a technique of diverting more traffic towards the website by increasing the rank of the website on popular search engines like Google, Bing, Yahoo etc. SEM is also called Search Marketing. It can be done in two ways; by getting traffic to the website with the help of SEO and by getting traffic with the help of SEA.

Please note that in his blog, Sullivan uses the term ‘paid search’ instead of SEA. In fact, many marketers do so. Even worse, some marketers use the term SEM when they, in fact, mean SEA. This is all very confusing, I admit. All you have to remember is SEM includes both SEO and SEA. In the two perspectives described below, I have substituted their use of SEM with SEA, as the authors were, in fact, discussing paid search results versus organic search results.

Perspective 1: Invest in both SEA and SEO

According to Julien Rio, you should invest in both SEA and SEO. SEA has three major characteristics: it is paid, quickly efficient, and short term.

  1. Paid, because the concept is always to get people to give you visibility and traffic against payment.
  2. Quickly efficient, because you do not need to build up a strategy: in exchange for your payment, your partner will provide you with immediate visibility that shall quickly translate into extra traffic and conversions*.
  3. Short term, because unfortunately, your SEM efforts will have an impact as long as your budget lasts. When stopping your campaign, its effect will almost instantly vanish.

*Be careful: quickly efficient does not mean “instant miracle”. Even though you should see an increase in traffic within a few hours, it might take longer to get extra conversions. SEA is all about optimization, trial, and error: you will need to optimize your campaigns and reassign your budget based on results. You will need to reconsider the platforms you use for advertising, the message you send and the audience you reach. Do not expect overnight success simply because you paid for it!

SEO has three major characteristics

Rio then explains that SEO has three major characteristics: time-consuming, slow to show results, and long-term.

  1. Time-consuming, because even though the first audit and round of improvements should be fairly easy, it will take a lot of efforts to start building backlinks and effective partnerships that will bring you the traffic you need.
  2. Slow to show results, because it takes time for Google to revise your website, notice the improvements and act accordingly. It might take up to 6 months to see the results of your efforts. Just make sure you do not fall for “easy quick fixes” that usually only get you blacklisted!
  3. Long term, because all you do today will have an impact in the long term. If you improve your website, create backlinks and generate content, Google will notice it and give you a better organic ranking, even long after you stopped improving your site.


Therefore, according to Rio, you should have a continuous SEO strategy running in the background. Never stop it. You might want to invest more or less time in it based on your resources but keep running it: it will always be beneficial in the end. Do not get discouraged if you see no immediate results.

SEA should be more of an “on-need” strategy. You could constantly run it to improve your results but ultimately it is more an “on-demand” strategy to help you boost your results when needed. However, keep in mind that SEA is also about campaign optimization. Do not completely cut it or change your budget entirely from one day to the other: that biases your results and makes the analysis less reliable.

Perspective 2: Four reasons why SEA is better than SEO

David T. Scott, however, argues that search engines have become too complex and that you should, therefore, focus more on SEA: “What SEO is justifiably famous for is its ability to convince the search engines that your webpage is the most relevant one for the keywords being searched. For years, strong SEO has been every marketer’s go-to tactic. However, even while you have grown more adept, search engines have grown increasingly complex. These days, you cannot just optimize and sit back. SEA should already be in your bag of tricks. It is more accountable because sites like Google offer in-depth data about the performance of your ads. “

Four reasons why SEA should be a part of your future marketing campaigns

Scott offers four reasons why SEA should be a part of your future marketing campaigns:

SEO is unpredictable.

The reason SEO is not ideal for lead generation is that its primary function is to increase your website’s ranking in “natural search” results. That means it is unreliable—the placement of your website is largely out of your control. You can work on SEO for months, and your site may still not get the “natural search” traffic you want. Search engines one-up you by constantly changing their algorithms to ensure that search results aren’t being fixed or manipulated by savvy marketers, which makes SEO a bit of a cat-and-mouse game. SEA, on the other hand, is firmly within your control as you choose the keywords and pay for the ads.

Leads via SEO are not so clear-cut.

It is difficult to quantify SEO as a lead-generation tool because you cannot be sure how many leads actually came from your SEO efforts. For example, suppose someone visits your website and signs up as a lead. How do you tell whether that person found you cold on a search engine, or if he or she searched for your site after hearing about your company from a friend? Perhaps a combination of these factors led the person to visit your site. Measuring the number of leads you get from SEA, on the other hand, is much more straightforward.

Finishing second place is fine with SEA.

SEA is one of the few areas where finishing second place or even third place can be just as beneficial as finishing first. For example, say you have an ad on Google. After a week, your ad is consistently showing up in search results in the second or third position when using the keywords you have chosen. If so, you may be compelled to bid extra money just to gain that top spot. The fact is, search engine users will often consider clicking on the second- or third-position ads in search results just as seriously as they would consider the first-position ads.

With SEA, the best ad wins.

An SEA ad hinges, more or less, on how well it is written. Other factors include how good the offer or call-to-action is to the customer looking for that product or service. You can tweak all of those things to fit the customer you want, and then vary it up depending on the leads you get. You get more control, and more options, than you do with SEO.


Generally, SEO is the set of techniques and strategies that allow a website to be more visible to the public that is looking up information on specific contents, products and services on free search engines.

In more details, SEO comprehends on-page operations, that is the optimization of website texts and codes, and off-page ones, which is anything that ease the diffusion of your links on other websites, increasing the web reputation and web authority.

Mistakenly, Google defines SEO as a method that both saves time and increase the notoriety of your website. Instead, experts have assured that SEO definitely improves the quantity of any website, but only if combined with other mechanisms which are necessary to the creation of a good website, such as design and link-building. Given that it is a point of meeting of many essential actors, SEO cannot shorten the time of realization of a good website.

SEO is a fundamental marketing instrument which allows to intercept interested individuals on one specific argument, product or service and attract them on a determined website in the very moment they express their need through a web research and, then, satisfy them. In other words, SEO is a magnet with that attracts all targets through the organic search engine results.

However, SEO is not the only strategy adopted to maximize website in marketing. For this reason, it is necessary to understand the differences with other existing instruments.


SEA is the set of techniques used to optimize your campaigns on Google Adwords (online advertising service that allows to insert advertisements in Google pages).

In other words, SEA comprehends all the paid advertising announcements that you find in the search engines and on partner websites.

Anglophones countries refers to the same concept with the acronym PPC (Pay per Click), where in Italy  it is considered as a synonym of SEA.


Why is SMO important?

Because in the last years social media have assumed a fundamental role for the success of advertising campaigns and for the SEO.

This is why it is important to create contents with different formats, meant to be published in various social media channels, such as Facebook, Instagram and YouTube. If well done, these contents can generate interest and increase the access fluxes into the main website.


Generally, SEM comprehends all the techniques and search strategies whose purpose is is to place the website to the first position, both organically and with PPC campaigns.

Consequentially, SEM contains SEO, SEA and SMO, or it pays to have their own advertisement appearing to the targets looking up specific keywords.


So, SEM differs from SEO because it pays to see appearing its contents on Google first page, method that does not require a high web reputation.

SEO strategies are always a good opportunity to build solid bases for your website for free, increasing its notoriety.

On the other hand, SEM helps to increase more quickly both the reputation of your brand and the customers catch. SEM can result to be quite useful when advertising items on sale and special offers.

It is not necessary to apply both, but combined they have many more benefits than alone.

Search Engine Marketing (SEM):

Search Engine Marketing (SEM) is basically the science and art of getting targeted traffic (free and paid) to your website from search engine like Google, Yahoo, Bing or other search engine networks.

Search engine marketing can also defined as a form of internet marketing that involves the promotion of websites by increasing their visibility in the search engine networks through all the activities that bring the free targeted traffic from search engine networks (Search Engine Optimization) and all the activities that bring the paid targeted traffic from search engine networks (Search Engine Advertising)

Search Engine Marketing (SEM) = Search Engine Optimization (SEO) + Search Engine Advertising (SEA)

Search Engine Optimization (SEO):

Whenever you type a query (Keyword) in any search engine and hit the “search” button you get a list of web results called organic (unpaid or natural or free or algorithmic) search results which contain that query term. Users normally tend to visit the websites that are at the top.

Search Engine Optimization (SEO) = Activities That Bring Free Traffic From Search Engines

Search Engine Advertising (SEA):

Search Engine Advertising (SEA) means advertising via search engines. You have two options to advertise via search engines in which the first option is to place your ad on search engine result pages (SERPs) and other is option is to place your ad on the display network of search engines.

Search Engine Advertising (SEA) = Activities That Bring Paid Traffic From Search Engines

Social Media Marketing (SMM):

Social Media Marketing (SMM) is getting targeted traffic (free and paid) to your website from Facebook, Twitter, LinkedIn, YouTube, Google+ or other social media networks.

It’s promotion of websites by increasing their visibility in the social media networks through all the activities that bring the free targeted traffic from social media networks (Social Media Optimization) and all the activities that bring the paid targeted traffic from social media networks (Social Media Advertising).

Social Media Marketing (SMM) = Social Media Optimization (SMO) + Social Media Advertising (SMA)

Social Media Optimization (SMO):

Social Media Optimization (SMO) is getting free targeted traffic to your website from Facebook, Twitter, LinkedIn, YouTube, Google+ or other social media networks through various social activities like blogging, posting status updates on social media profiles, participation indiscussion groups, social bookmarking, virals, online reputation management, user rating/polling, user feedback, RSS feeds, sharing buttons, use of video/photo sharing sites and many more.

Social Media Optimization (SMO) = Activities That Bring Free Traffic From Social Media

Social Media Advertising (SMA):

Social Media Advertising (SMA) means advertising via social media. Having ads that appear on Facebook, Twitter, LinkedIn, YouTube and other social media sites that are promoting any brand, product or service. These ads are served by social media advertising platforms where advertisers pay money for showing their ads on social media network pages which are based on various payment models.

Social Media Advertising (SMA) = Activities That Bring Paid Traffic From Social Media (SMA) + All Other Online Display Advertising Channels

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