In part six of a series of conversations that explore the state and future of social media, Chris Beck, founder of 26dottwo (@26dottwo), and I check-in with FourSquare and other geo-location networks. We review how these location-based networks open new channels and dynamics for online and offline connections. We also examine the nuances of “checking-in” as a form of social currency and implied endorsement. Essentially, there are cultural and economical aspects with tying your “personal brand” to the locales you…