Twitter has made its latest acquisition: social TV analytics company Bluefin Labs. Although the deal is focused on TV rather than music, what it signifies about Twitter’s desire to provide data as well as a platform for the entertainment industries is interesting. The goal: “Product development and research to help brands, agencies, and networks fully understand the combined value of Twitter and TV.” The deal comes days after Twitter reported 24.1m Super Bowl-related tweets during this year’s American football showpiece. On a related note, Billboard noticed a second-screen effect for Beyoncé after her half-time show. It seems people weren’t just putting a tweet on it (sorry), they were buying it – with her digital album sales up 230%, with Destiny’s Child’s spiking by more than 600%. Admittedly, this was as much about discounts on big digital stores to tie in with the Super Bowl.