Blogs for SEO process
It's no secret that blogs are great for helping to boost your seo rankings. You can use a blog to get a new site ranked quickly and ahead of your main site if you are dedicated to posting on a frequent basis.
While the main goal of your blog may be to express your thoughts, talk back to your customers or as a vehicle to promote your product or services, there is another critical element to blogging.
Because of the frequency of active blogs (daily - or at least 5 times a week) the search engines have put high weight on blogs that are focused and tend to stay on topic.
Another mistake made by the amatuer blogger is that they don't realize that you can optimize your blog. True, most blogs only have a few areas, namely the "home" page and the "archive" page. But depending on the tool being used to post the blog, there are some places where you can take advantage seo-wise.
The title of your blog should be thought of as a headline - grab the reader's attention - but also be sure that your blog title is also what gets archived - that way your titles can become search queries as well.
While the main objective of a blog should be to get your message out, don't forget to take a little time for SEO and you should see your efforts payoff in the search engine results pages.
source : http://seoarticles.seoforgoogle.com/blogging-for-seo.cfm

