Editor's note: This guest post is written by Michael Levinson, the co-founder and managing partner of DreamIt Ventures , a startup incubator. Philadelphia-based DreamIt Ventures , a pre-seed stage venture firm and incubator founded in 2007 by David Bookspan, Steve Welch, and myself is graduating 14 startups today. It’s been a busy third year for DreamIt as prior companies incubated, including Google Ventures-backed SCVNGR , TechCrunch 50 Finalist SeatGeek, PostLing , and NoteHall, have all raised funding. You can read my coverage of last year's batch of DreamIt startups here. Below is a description of each company in DreamIt’s class of 2010: