There are rumors that Google is considering purchasing Twitter to replace Google+, which would be a huge shake-up in the world of social networking. Twitter has already teamed up with Google by providing Google with data to power search results, and Twitter’s small business groups worked with Google ads on a new marketing campaign. Google doesn’t want to lose any ground to Facebook in the advertising market, and losing its access to social search with the loss of Google+ could really hurt Google’s bottom line.