If you are interested in starting / GMing / participating in a PnP session with fellow forumites, may I suggest determining the:
setting (e.g. Forgotten Realms, Call of Cthulhu, etc)
rule system (GURPS, d20, etc)
frequency and scope (weekly / monthly, for six / twelve months)
favoured time of day and day of the week (Monday night 7pm GMT etc), and chat program to use (Trillian, Google, Messenger, AOL, etc)
drop outs (leave them by the side of the road / running screaming from the dungeon, etc) and critical players
any other suggestions.