• All Things D, Thursday, March 3, 2011 12:01 PM

Over the next four years, spending on domestic "daily deals" could approach $4 billion, according to new estimates from BIA/Kelsey. That's up from a measly $873 million in 2010. "In its most optimistic scenario, U.S. revenues could hit as much as $6.1 billion in 2015," AllThingsD's eMoney blog notes.

For it's part, eMoney calls the $4 billion projection "conservative given some of the official figures known about the largest players in the space." In an internal memo, for instance, Groupon recently revealed that it saw its revenue surge to $760 million last year from $33 million in 2009 -- although more than a third of its 2010 sales came from outside the U.S., eMoney nots.

Amazon-backed LivingSocial, meanwhile, recently said it was booking revenues of more than $1 million a day and is projected to record well over $500 million in revenue in 2011. Of note, BIA/Kelsey said it factored in the likelihood that the novelty group-buying discounts will fade.

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