While there are many reasons to blog, there are two primary uses that are becoming more widespread with blogging: To game Google Adsense, and to also game the search engines for better rankings. Since Blogs are known to the search engines as daily snippets of information that are updated on a frequent basis, they get a lot of preference in the search results.

Depending on the service you utilize, there are still some basics that you can apply. The two biggest blogging sites are WordPress and Blogger. If you are looking for an advantage with SEO, you should use Blogger since they are owned by Google, and you'll be indexed quicker. Blogs aren't all that much different than a site. The power of a blog is from the frequency of the posting. If the search engines see a pattern of 3 postings per day, they will be very active on spidering that site. Depending on the topic of the blog, you may be able to boost your blog in the rankings if it's related to a hot topic on the Internet.