Creating the largest Web 2.0 acquisition in the United Kingdom, CBS has purchased last.fm for $280 million. CBS announced a few weeks ago how they will being partnering with as many Web 2.0 sites as possible to spread their content around - but this wasn’t expected. Last.fm launched 5 years ago, has about 15 million users, and recently added a video component to their services.

“Last.fm is one of the most well established, fastest growing online community networks out there,” said CBS President and CEO Leslie Moonves. “Music has the unique ability to unite large groups of people and engage them around a shared passion. Part of our interactive strategy has been to build communities around all of our properties. CBS Radio has given us a powerful way to create such communities for decades, and it continues to do so. With Last.fm we’re adding a next-generation platform to allow audiences to communicate with us and each other as never before.”

The team working on last.fm will not change which will lend a helping hand to cohesiveness, morale, and getting more features out the door. Let’s hope CBS can make this acquisition really work for themselves, last.fm, and more importantly - the users. CBS also recently acquired Wallstrip.

Previously, Viacom was expected to purchase last.fm for $450 million.