Curious that some of these have the very same deals to Groupon -- Tasca restaurant and the sushi-making class were deals in both Groupon and livingsocial, as examples. And they seem to operate on the same m.o., showing a counter of the number of deals purchased. Hmmm.
Puts me in mind of the catalog company guy I sat next to on one plane ride. His business was to take his stable of products and vendors, and re-mix them and re-mix them, putting different catalog covers on the result to appeal to different consumer profiles|"lifestyles". He was involved with the "Sky Mall" etc. airline catalogs that are in the seatback pockets. I'm suggesting an analogy, not the same thing. In particular, is this the same company with different websites, different faces?
I'm not going to take the time to go back and see if the number of deals purchased is the same, but what would your guess be? Just sayin'. But as long as the deals are fulfilled, it works for me.