There are some new schemes for social media monetization in the news today. Groupon is talking to Foursquare, after already signing up Loopt. UberMedia is hitching up with actor Ashton Kutcher on a branded Twitter client and, to tie the celebrity and social commerce themes together, Glen Beck will offer discount deals on a new site he’ll promote through his other media channels. Some see Groupon as a potentially powerful mobile ad network. Check-in apps are a good place to promote offers, but Groupon should buy space on mapping apps if it really aims to be an ad network. These just feel like distribution deals. Similarly, Kutcher and Beck are both big brands with lots of fans, but neither seems to have huge potential for scale, let alone network effects. At least Kutcher or his management seems to be curating content with some contextual relevance for his audience.