Sendmemobile.com
Their text message must be replied to with "stop" or they bill you $9.99 through your carrier!
I found two charges on my TMobile bill for $9.99 - one charge from "sendmemobile.com" and one from "talking sky". I called TMobile, they explained that I had received a text from each and by not opening each and replying "stop" I had authorized each to ...