Today’s funding and acquisitions news roundup from across the web:
Web Content
BookRenter raises $40M for textbook rentals (via DealsBeat)
GreenTech
Energy Efficiency Startup Transphorm Emerges From Stealth, Raises $20 Million From Google Ventures (via TechCrunch)
Phononic Devices Raises $10 Million To Turn Heat Waste Into Energy (via TechCrunch)
Mobile/Gaming
Exclusive: Grey Area Raises $2.5 Million To Turn Your City Into A Game (via TechCrunch)