Roomster.com charged credit card without making it clear what they were doing Internet
This company advertises a three-day services for 5.95, then at the end of three days debits your credit card for 29.95 without telling you. I complained to them and was sent an email that I am pretty sure included Unix malware because it was a different email address than the other emails they had sent and I had problems immediately. Came from someone named Craig. Had a heck of a time removing it. Their "matches" were random and no good.