I sold my van recently and I received a surprising amount of quality interest from Craigslist so I wouldn't immediately discount that. You may have to filter out a few people and not respond to some messages but make it clear you are looking for serious buyers and they will let you know by their response if they are. I also posted on this forum and RVtrader.com. I ended up selling to someone from RVTrader and received a good amount of interest from there as well. My recommendation is Google "Used Sportsmobile" and see what comes up... because that is what your buyers are doing. This forum and RVTrader were ranked pretty high for that.