Yeah....
This information is really useful for those who are keen to know about SEO updates.
Also I like the concept which you have explained about "URL Rewriting" thanks for that...

If I do the keyword nike dunk shoes

Is not written like this url: <strong><A href="http://www.dunks-shoes.com/"title="nike dunk shoes">nike dunk shoes</A></strong>

Really nice collection of methods of SEO posted, doesn't get any better than this!!..

what is the use of seo?

increase your site visibility in search engines results.

Hi Guys,
Tnx for this valuable information..It is really helpful in every aspect..
Tnx,
Shweta

The purpose of search engine optimization is to create a website as search engine friendly as possible. Search engine optimization is the system of increase the visibility of a website or a web page in search engines.

SEO helps you to rank your website well in search engines so that it can help you in improving the organic traffic for your website.

well.......
Search engine optimization (SEO) is the process of improving the visibility of a website or a web page in search engines via the "natural" or un-paid ("organic" or "algorithmic") search results.

SEO is an acronym for "search engine optimization" or "search engine optimizer." Deciding to hire an SEO is a big decision that can potentially improve your site and save time, but you can also risk damage to your site and reputation.
With the help of Search Engine Optimization technique, a website can be ranked in top search results of appropriate keywords. It's a well known fact that the visitors that are highly qualified internet savvy leads are more likely to buy your goods and services.