Last month I had a charge for $10 from reservations rewards. I always review my credit card statements and I did not remember anything to do with this company. There was a 1-800 number next to the name so I decided to call it. When I did I got a recording as is typically - they had a choice to cancel membership, however, I didn't even know if I was a member as I never heard of them before so I decided to talk with a customer service rep. I asked what sort of company they were, etc. Some sort of travel discount - well I knew I never signed up for this so I told them so. They were nice enough and said they would cancel my membership and reverse my fee.
Next month another $10 charge from them, so I call again. They said because of timing I was charged again, and they would reverse in 3-5 business days. I decided what the heck, I'll look them up and I find an article describing a lawsuit where they are automatically signing people up when they purchase something on the internet with a reputable website - called "coupon click fraud" scam. The article is here if you are interesting in reading it, but these are major website companies so you are warned.
http://www.toptechnews.com/news/Webloyalty-Accused-of-Online-Fraud/story.xhtml?story_id=030000XRDY80
I believe I was a victim via FTD.com as I had a purchase with them prior to these charges and they were listed.
I also saw another website where some one else was a victim (victim via expedia.com) including the BBB link for CT (state where they operate) and a whole slew of complaints.