You could list it in the Post, but that's fee-based. I don't remember how much it cost to list my car; I think it was about $30. I'd be inclined to wander a couple newsgroups and bulletin board-type sites and see if there's anywhere you can post free ads.
I can post to balt.forsale (if anyone actually reads that) ... if anyone knows apropriate bulletin boards off the top of their heads, I'll try them. (Not asking y'all to do my research for me, but if you have the info handy and don't have to do research, I'll gladly let you save me from having to do the research either.)
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