Twitter announced that it has acquired the Fluther, or the team at Fluther, rather. The product Fluther will remain separate from Twitter, and is not part of the acquisition.
In other words, this was a talent acquisition, and the company hopes that this team of five will help it find new ways to get people Twitter content that is relevant to them. Twitter has indicated in recent interviews that this was an area of focus. Today’s acquisition would appear to emphasize this mentality.