I Head It On The Twitter Grapevine
So why is Twitter popular as an acquisition, well more and more people are using twitter to talk about brands in real time and therefore interact on a social level. So its a win win both sides, brands get realtime feedback and consumers get 'honest' reviews, i say honest but as more and more affiliates manipulate twitter this may be slightly skewed.
So why would Google be interested, well Twitter is a great hub for integrating paid search and with paid search accounting for 40% of the advertising market this is a big revenue opportunity.

