25 2009 Finalists for America's Best Young Entrepreneurs (under the age of 25). Three are currently Philly-based:
Nat Turner, his partners Zach Weinburg, Scott Becker, and Michael Provenzano, and their Philly-based Internet advertising firm Invite Media.
Brian Ruby and his Malvern company Carbon Nanoprobes, which makes molecular imaging equipment for imaging microscopic objects.
Sister and brother Catherine Cook and David Cook and their teen-oriented social networking site myYearbook.com of New Hope.
Two others named grew out of Philly's Dreamit Ventures incubator: SCVNGR, now out of Boston, and NoteHall, which is
apparently based in Tuscon.