Twitter Weekly Updates for 2011-05-22 Oh boy. RT @mashable: LinkedIn Finishes First Day as Public Company Valued at $8.9 Billion – http://on.mash.to/jbhmrl # Share this:FacebookX By Adam Finkelstein Techno-geeky, hyper-connected, educational technology, social media dad with a academic, educational developer, teaching and learning, social wrapper. View all of Adam Finkelstein's posts.