Exciting news in the social media monitoring world today with the acquisition of Radian6 by Salesforce.com for some nice money. The move makes all the sense in the world as it gives Salesforce.com a reach into the Marketing/PR world rather than just sales. Radian6 was already the most widely recognized name in the social media monitoring space, and as an independent operator was a logical choice for acquisition. Buzz in the industry has been that they would be acquired sometime this year, but I never expected Salesforce.com to be the purchaser. Going forward I suspect that this will change the SMM marketplace quite a bit.