by Mike Moran Image by luc legay via Flickr Social media is free, but what's the catch? Time. We only have so much time to spend putting our message out there, but we don't want to limit how many people can hear what we have to say. This problem comes up in many ways, but the simplest is the dichotomy between Facebook and Twitter. Many folks decide to spend the bulk of their social time on one or the other, with relatively few people using both. If Google Buzz catches fire,