What is SEO?
Link Manipulation:
One of the way that the search engines decide your sites ranking in a search is by the amount of back links to your site is finds on the internet. Every day the search engines are searching all the different websites on the internet and they count link and look at content and even the design of the site itself. It will count the number of other sites that have links to your site, and for each one it finds it gives you a point. Some sites will try many different ways to get links to their sites. One way they do this is by going to different message boards and will leave posting totally unrelated to the topic being discussed just so they can add in a link back to their site, even these types of links are counted as recommendations and increase the sites page rank. This is considered to be dirty pool by most search engines and they are trying to eliminate this type of marketing.
Garbage:
In the world of online marketing the more people u reach the more people that may check out your site. In an attempt to get more traffic webmasters have bought lists of email address and regularly send garbage emails called Spam. These emails advertise everything from Viagra to Rolex replicas so amazing a professional can not tell the difference, but the webmasters did not stop there. Email is not the only source for their garbage. Some webmasters have even made websites and filled them with garbage content packed with keywords designed to brig their sits up on as many different search engine searches as they can. On these websites there is no content of any interest and chances are none of it is even remotely relate to the subject you were doing the search for in the first place. These sites only exist so that you will come to the site and hopefully leave thru one of the many links provided on the page. The links are to partner sites that pay for each person who you get to come to their site. Sites like this are also Spam.
Text:
No matter what your site is about you have to have text on your pages. This text is used by the search engines to determine your relevancy in a keyword search. If your site is about blankets words like blanket, comforter or duvet will probably appear often on the site. The search engines recognize this and will use this information to bring up your page when someone types in the relevant words. Besides making sure that the text is relevant to your site it is also important to change and add text on a regular basis.
Software:
The search engines have specially designed software that when it checks out your site it looks at your keywords and it determines how simple your site will be for users. This software also tries to block sites that are considered spam, and if a site is determined to be spam a search engine will block that site so that it will never come up in a search, even if the domain name is searched for.
Design:
When we talk about design as it refers to SEO it does not mean the font or the background color, we are talking about how well it works and how easy it is to navigate around the site. No one will come back to your site if it is difficult to find a desired inner page from the home page.
By taking these things into account when building a new site you will make your live much easier.

