Social media giant Twitter Inc ( TWTR ) confirmed its acquisition of New York-based advertising technology start-up Tap Commerce. Financial terms of the deal were not disclosed, though media reports indicated that the deal is valued at around $100 million.. Twitter’s business hinges on advertisements posted on its site alongside the tweets through smartphones and other mobile devices. Twitter (NASDAQ TWTR) has been under pressure … Continue reading Stock to Watch: Twitter Inc (TWTR) Captures Mobile Ad Tech Startup TapCommerce