One of the companies who want to deal with these is the RedWeek.com, the largest timeshare marketplace.
Recently, it partnered with the Timeshare Crusader, Lisa Ann Schreier, to further awareness of and education about timesharing. Schreier on the other hand, is the founder and director of Timeshare Insights, a consumer consulting and education organization, and the author of several timeshare books.
Full report here.