Here. A couple profiles I like:
Narasimha Chari, 31: Tropos Networks: Setting the mesh networking standard
Tropos Networks, the company Chari founded in 2000 with coinventor Devabhaktuni Srikrishna, helped launch commercial wireless mesh networking. With their straightforward installation–routers attach to lampposts–and attendant low cost, mesh networks have eased into plentiful use both outdoors (on campuses, in public safety networks, and at gatherings such as festivals) and in (in hospitals and factories). But Tropos is focusing on the rapidly growing market for networks that serve entire municipalities. That’s the application of choice for one-third of the company’s 200 customers.
Andy Carvin, 34: Digital Divide Network: Bringing Internet power to the have-nots
Carvin’s idea is to combine the ubiquity of cell phones with the ease of posting information to Web logs (blogs). Say protesting human-rights activists get roughed up by police, with no traditional media on hand to record their plight. Over their phones, the human-rights activists could send multiple reports on what’s happening–either audio or video–to the same website. Carvin is pushing programmers to create mobcasting software that works outside the U.S. phone system. With the use of mobcasting, suggests Carvin, “suddenly, the very people who are victims are empowered to bear witness to the world almost instantaneously.”