Just a suggestion...
My former kayak fishing club - KFA-NY (before I moved back to SoCal from New York) used to have a specific forum on their message board that was just for this kind of thing... it was called...
"Fishing Partner Wanted"
"Going out alone can be dangerous or just boring. The buddy system works so hook up with another club member and fish an area together."
Was kind of cool in that anytime anyone wanted to go out fishing or whatever, they'd make a post and anyone who was interested in joining could make arrangements to meet up... simple enough. Pretty much the same as here but a little bit more organized in that all the threads were contained in one forum amongst the many other forums on the board.
I don't know if you guys would be receptive to having a forum name just for this kind of thing or not... but it was just a thought...
- Ken