AmazonLocal
local.amazon.com
local.amazon.com
FWIW, "enter city or zipcode" seems to only accept numbers, I imagine this is US only but I believe there are cities with letters in their names also there :)
I suppose Groupon's required email address turned me off to the genre early on.
But it breaks down when that business fails to increase it's capacity. Case in point: I used groupon once for a restaurant and the experience was horrible. The restaurant was completely unprepared for the number of people showing up. On paper I got $40 bucks worth of food and service for $20 bucks, but the experience was so bad I wish I had stayed home and saved my $20 bucks.
In my situation the restaurant and Groupon dropped the golden football.
From a business perspective the failure to convert into repeat business has long known to be a problem, but now having experienced GroupOn as being a second class experience I simply won't be using it again.
In fact, the limited experience of GroupOn in our household has been such that they've successfully made us dubious of the entire offers/group-buying thing and leave us preferring to get personal service and avoiding the offerings of GroupOn and all of their competitors.
I'm guessing it is going to mix it up by offering deals from other services, whilst it builds up momentum to offer its own.
There's also the common observation from Groupon advertisers that Groupon users aren't necessarily particularly desirable customers. They're often deal hunters who have no interest in becoming regular customers after they've used their coupon (not that LivingSocial or AmazonLocal users would be any better in this regard).
Edit: also worth pointing out, this is why I think Square's latest offering has the potential to knock it out of the park: user and merchant stickiness, going after loyalty rather than dealhunting, etc.