Just thinking about promoted / social discovery a bit more here….  I rambled last week about how Twitter will make lotsa money from promoted tweets similar to how StumbleUpon already makes lotsa money from promoted stumbles (both = promoted discovery); and a few weeks prior re foursquare and social discovery.  But what if we think about them together and swirl in some daily deals…?

Today, foursquare is probably best positioned to deliver targeted, location-based relevant deals. (Even Peter Kafka figured that out yesterday;-)) And clearly foursquare can (and does) make some money from affiliate fees / lead gen for the Groupons and LivingSocials. But could a foursquare also charge to promote those deals? It’s kinda what Groupon and LivingSocial do already (upon conversion), but maybe there’s more. It’s certainly conceivable that merchants can either pay more money and/or offer better deal economics in exchange for better deal ‘placement.’ So if the deals are still relevant (based on location and user preference), why shouldn’t a location-based deals company be able to charge to promote ‘better’ deals. I smell another LBS revenue model. The inventory probably isn’t there yet. But hey, yet isn’t so far away sometimes.

Just thinking.

(Short enough for you, Novich?:))