Stephen, I suggest you post your query to Socnet, the helpful social networks list serve, as you are quite likely to find tool suggestions there. Barry Wellman A vision is just a vision if it's only in your head Step by step, link by link, putting it together Streisand/Sondheim "The Trump White House will be a battlefield between crass plutocrats and dangerous lunatics, and we all must hope the plutocrats win." David Frum, Dec 3, 2016 "Those are my principles, and if you don't like them... well, I have others." Groucho Marx _______________________________________________________________________ NetLab Network FRSC INSNA Founder http://www.chass.utoronto.ca/~wellman twitter: @barrywellman NETWORKED: The New Social Operating System Lee Rainie & Barry Wellman http://amzn.to/zXZg39 _______________________________________________________________________