Box.net Nabs $48M, BookRenter Books $40M, Transphorm Absorbs $20M, & More Bay Area BizTech News | Xconomy
Summary
Even though last week was a short one thanks to the Presidents’ Day holiday, there was a storm of tech news in the San Francisco Bay Area, with a few major funding announcements taking top billing. Transphorm has developed gallium nitride-based power converstion technology for reducing energy losses in data centers, building systems, solar installations, and hybrid and electric vehicles. —BookRenter, a Chegg competitor in the college textbook rental market, collected $40 million in Series C funding from a group of new and existing investors. —Aaron Greenspan, the founder of Think Computer Corporation and the author of a Facebook precursor, has a plan to kill credit cards with a mobile payment system called FaceCash. —A Boston-born startup called Traackr, which helps marketers identify the most influential social media users in any topic area, revealed that it’s moving to San Francisco and has simultaneously raised Series A funding.
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