Taming the HetNet with Wi-Fi traffic cops

Interference and clogs over wireless networks could be reduced with software that acts like a wireless traffic light. GapSense allows heterogeneous devices to talk to each other.

Two startups aim to make higher education more affordable — or free

Higher education costs have skyrocketed by over 430 percent since the 1980s. Now two startups aim to make college courses more affordable. Coursera offers free online courses from universities like Stanford and Princeton. And a new tool from Akademos helps professors find less expensive — or free — textbooks for their courses.

Piazza gets $6M Series A to help with college homework

Piazza, the social network that lets college students and instructors discuss material online, has closed on $6 million in a new Series A funding round. Piazza’s service is meant to counteract study group snobbery and eliminate students’ fear of asking “dumb” questions.