They say they'll add your website link to their site, and mention you somewhere on their facebook page. No real benefit, but I suppose that's the thing with making donations. I finally did some real research and I did "Like" their facebook page, since I think it's great what they're doing, but I'm not about to join a "daily deal" company.
Funny how in their advertising the deal company says that taking 50% of the profits on a day when you have their feature deal ... is "competitive." Hmm. Really? It's only competitive because that's what Groupon set it at! More power to these start-up companies trying to do what groupon is doing, though!