SUMMARY: Seems like everyone is trying to make an extra buck these days by renting out their email list. Worldata's Jay Schwedelson says, "We've seen exponential growth of the number of list on the market.18 months ago there were 3,000-4,000. Now it's literally close to 20,000."
Lots of those lists are "garbage" and many are selling for bottom-of-the-barrel pricing. Here is useful advice on how to put your list on the market the "right" way, so anti-spam advocates will not hate you, and so you actually make a decent profit.