Good point Doreen!
I've just recently heard in the past month of numerous working relationships that were developed right here without the benefit of an ad being placed at all.
The more you put yourself out there as experienced, intelligent, and willing to share your knowledge here the more likely another VA will take notice and possibly come to you when she has a subcontract in mind
(And I LOVE hearing about all of the work going on around here - it's so cool to know that the forums are helping to facilitate that!)