For those wondering, the side jobs I pick are all cases where the company or non-profit or whatever organization is contacting me directly because they either already know who I am and what I can do or they've called around to people they know and got referred to me that way. (I've also done the you don't want to bring me on to this, because so and so is better on that thing.) A general recruiter isn't going to know enough to correctly identify anything I'd be interested in.