I'd never give my phone number over the internet either its asking for problems. Groups I belong to include Noddy Cherry Ames John Thaw they are about the only bookish ones I think. I have joined a few groups but must sort them out as some I really dont take any part in so its pointless.
I do have my own group on Facebook Oddbods Theatre Group. I started the group about 6-7 years back for ordinary people to have a go at performing on stage with no auditions no cliques just a bit of fun and all the money goes to good causes and its still going strong and has its own Facebook group. and website
http://www.oddbods.org.uk/ I also run a quiz website
http://www/sitesaveronline.co.uk/quiz thats just promoting quizzes being sold for charity.
I love Labrynth. Thats a brilliant film. I love the whats his name fellow who escorts her through the labrynth is it Hoggle my brain isnt working tonight.