venture capital deals

Groupon, the online social coupon site launched in 2008, is looking to raise hundreds of millions of dollars in expansion-related funding after rejecting a bid from search giant Google worth as much as $6 billion, Bloomberg News reported Thursday, citing people familiar with the process.

Just a few days after Google reportedly offered $6 billion for the top group-buying site, Groupon, the service's biggest rival, LivingSocial, has scored a $175 million investment from Amazon. But how long will these hot deals last?

Larger transactions and increased investor confidence pushed clean technology ("cleantech") venture capital investments higher in the second quarter of 2009. Investments in companies dealing with energy efficiency and solar power led the overall market, which surged 73 percent quarter-over-quarter....