I follow most of the rags around here...
and other than Spinsheet it doesn't seem that many of them cater to the sailing crowd. Salty Dog has one or two pages, but never many nice boats. So, Spinsheet for sure. If you go with local papers you get all kinds of calls, but you never know who might be the right one. The Annapolis paper lists lots of sailboats, so you can try that one.Seems that you'll get the most qualified customers off this site and perhaps BoatTrader online (a free listing site too.) BoatUS has free listings too.Also, perhaps Ebay. Lots of boats listed over there, some just for the exposure I think.