I've ran a case study before on Groupon INTL, specifically singapore. Groupon was strict though, they forced landing pages, and needed approval on everything. This made it hard to profit, but there's a lot more INTL daily deal offers out there right now.
I've written multiples guides & posts on the forums on exactly how to make these offers profit!
I just saw these 2 offers on Neverblue, and theres more out there, so get cracking if your looking for an INTL niche without too much competition. Most traffic sources love daily deal offers so it's a hassle free niche!

For those people who are wondering where you can read stackmans awesome posts about daily deals (and how much he profits from them!) you can read them here:
http://stmforum.com/forum/showthread...!-(daily-deals)
http://stmforum.com/forum/showthread...-Groupon-Guide
They're fantastic reads. There's also another Indian one in Neverblue, snapdeal.com =)