Groupon was recently valued at over $3 billion.
The daily deal giant is also still weighing whether to rebuff the offer, and instead have another round of funding.
Groupon will likely take until the end of the year to make their decision, say the sources.
If the deal goes through, the acquisition will almost certainly become Google's most expensive ever, topping the $3.2 billion they paid for online advertising provider DoubleClick two years ago.
Overall, Google has spent $1.6 billion on acquisitions this year alone, picking up 21 companies. That number does not include the pending $700 million acquisition of travel data aggregator ITA.
Groupon has 300 markets in 29 countries, with revenues expected to top $500 million this year.
Written by: Andre Yoskowitz @ 19 Nov 2010 17:48