I read your post on my mobile phone while on a bus travel and it stirred me due to the fact that I’ve been doing SEO lately the poor man’s way like blog commenting, Social bookmarking, forum signature, directory submission, etc. I don’t know if any of these things still work today since I’ve been practicing them since 2008. These 25 SEO tactics that you have shared got my interest. Actually I am planning to make a new site right now after reading this one. I found out that maybe I’ve been doing a lot of spamming lately that my site is still not ranking on my desired keywords. And also, you have pointed out that it is not just by means of Keyword planner that we will be able to get keywords since there are others like, as what you have said, the wikipedia and the like. I am planning to make use of this article as my guide in starting a new one. I bookmarked it… honestly.. 🙂 And since I have read a lot of articles regarding SEO tips from other sites, I can compare them to your tactics and this is more interesting and exciting. I want to build a quality site that can make me generate income for long years. THANK YOU FOR BEING GENEROUS WITH YOUR KNOWLEDGE. I will try to communicate with you through email and I hope you can coach me Brian. .. please.. 🙂
Really its just a matter of getting creative - grab a cup of caffeine and think for a minute about what resources you have to try to get some insight on your visitors (or target markets) and their needs before you dive in.  Think about how much time it might take you (or what the cost of the reports would be if you are going to buy some market research reports), and tack that onto your billing as an optional service.
Content is king. That’s the saying, right? It’s true in a way. Your website is really just a wrapper for your content. Your content tells prospects what you do, where you do it, who you have done it for, and why someone should use your business. And if you’re smart, your content should also go beyond these obvious brochure-type elements and help your prospective customers achieve their goals.
Another reason is that if you're using an image as a link, the alt text for that image will be treated similarly to the anchor text of a text link. However, we don't recommend using too many images for links in your site's navigation when text links could serve the same purpose. Lastly, optimizing your image filenames and alt text makes it easier for image search projects like Google Image Search to better understand your images.
You may not want certain pages of your site crawled because they might not be useful to users if found in a search engine's search results. If you do want to prevent search engines from crawling your pages, Google Search Console has a friendly robots.txt generator to help you create this file. Note that if your site uses subdomains and you wish to have certain pages not crawled on a particular subdomain, you'll have to create a separate robots.txt file for that subdomain. For more information on robots.txt, we suggest this Webmaster Help Center guide on using robots.txt files13.
Schema.org is a type of markup that you can put in the code of your website. Using schema.org, you can tell Google which picture on your site is your logo, where your reviews are, where your videos are, what type of company you are, where you are located and much more. Google has hinted over the last year that schema.org will help your website rank better in Google search. Recently, Google’s John Mueller, said in a Google Hangout on Sept. 11 (at the 21:40 minute mark) that “over time, I think it [structured markup] is something that might go into the rankings as well.”
As a simple example, I recently renovated a Victorian-era house in the UK, and throughout the process, I was looking for various professionals that could demonstrate relevant experience. In this case, having a well-optimized case study showing renovation work on a similar house in the local area would serve as great long-tail SEO content — it also perfectly demonstrates that the contractor can do the job, which perfectly illustrates their credibility. Win-win.
Although this is a step-by-step series, everyone's methods will (and should) vary, so it really depends on how much time you think it will take (if you're billing hourly).  What tools do you have at your disposal vs. how much researching for information will you have to do on your own? Will you have to pay for research reports or companies? Do you pay a monthly service for data or research?

SEO may generate an adequate return on investment. However, search engines are not paid for organic search traffic, their algorithms change, and there are no guarantees of continued referrals. Due to this lack of guarantees and certainty, a business that relies heavily on search engine traffic can suffer major losses if the search engines stop sending visitors.[61] Search engines can change their algorithms, impacting a website's placement, possibly resulting in a serious loss of traffic. According to Google's CEO, Eric Schmidt, in 2010, Google made over 500 algorithm changes – almost 1.5 per day.[62] It is considered a wise business practice for website operators to liberate themselves from dependence on search engine traffic.[63] In addition to accessibility in terms of web crawlers (addressed above), user web accessibility has become increasingly important for SEO.
See the screenshot below for some of the sections for specific recommendations that you can add which will provide the meat of the document. Keep in mind this is a very flexible document – add recommendations that make sense (for example you may not always have specific design considerations for a project). Remember, it will be different every time you do it.