There is also a freesailboat yahoo group.
groups.yahoo.com/group/freesailboats
Boats pop up all over the US, about once a week, and people are
posting to the group daily.
BTW, to add to that Columbia 23, I have three head sails for an Irwin
23 that have come into my possession, a hank on genoa, a hank on jib,
and a North sails spinnaker, so if anyone snags the Columbia, I am in
Stuart, South Florida and would be willing to give the sails to the
new owner, though the J measurement is a couple feet longer on the
Irwin, so they may need to have the foot shortened... or put a taller
mast on the columbia...
Also, cheap, but not free, and also not a sailboat. There is a Chris
Craft Constellation 42 (?) solid lovely wooden motorboat, hauled last
month with dual newish good running Mercruiser V8s. The boat is in
reasonably nice shape. They seem to sell for 10-25k in this shape,
though always up north where wooden boats stand a chance. The owner
wants 5k and can be talked down (so I am told), because they are too
old to continue and don't want it coming back to their dock. I saw
the bottom myself when it was hauled. They fixed some wormholes, but
other than that it was solid. I'd buy it myself for the re-sell, but
I am certain that owning two boats is a recipe for a total life
disaster.