Conduct just about any search and you will likely find some information stemming from a Twitter profile. Businesses have learned that leveraging Twitter is not only a good way to make your company accessible, but also to reach out to consumers and to help boost overall rankings on the major search engines.

But just how much are search engine results pages (SERPs) influenced by Twitter?

In March, 2009 we explored this territory with part one of a series, "Twitter as Google SEO." We searched a few terms, found Twitter accounts and their respective websites, and noted how Google rankings were affected. We also started a new account and decided to track its progress through Google. Now, three months later, we take another look. This time, we expand our search but use the same terms and examine the changing results. Twitter may be deemed a waste of time by some, but there's no denying that it's impacting search. Read part two of this three-part series now.