the best thing to do with them is develop them,make a mini site and add analytics and see what traffic is clicking through,i bought barbirooza/com twelve months ago with a hunch it might be worth something and i parked it at sedo and it generated £40 a month in clicks,when i asked for an appraisal on these boards it was slated,i did some research and it was dropped by a big french bank so never lose heart.
all the best
mark