Logging into Fast Company’s new online community (fastcompany.com now in public beta) a few weeks ago was a neat perk of having a social media friend at a big company. I took my head start, got in, played around for a few hours, liked what I saw, then moved on to something else, forgetting to come back to it. Silly me.Shel  Israel’s post Friday reminded me I was a member of the Fast Company community and I should go back and see if I could find more friends that might start hanging out there, producing content, sharing ideas and all the things that come from social networks.