I was just kidding of course.....every place that produces Anchor Text links is valuable!
I'm thinking of posting at Craigslist again....at the geographic area that has the LONGEST expiration date for the ad. (My thought is to find another "Sacramento" besides CA, and pick one with a 45 day time fuse).
That way, you can ride the Google coattails, and the ad stays up for 6 weeks at a time.
(The CL posts produce google benefits, provided they don't disappear in 7 days!)