I have 10's of thousands of phone numbers - probably half of which are cell numbers. I just realized that you can use yahoo messenger to sent a text message to any phone number you want. Here's my Evil Plan I have websites that capture ~100 of these phone number per day. I'd like to be able to send a text message to these people (or a series of text messages) - and do it via the Yahoo messenger system. Better yet, put it on a delay. Since I email them immediately after they fill the form out anyway, I could set my system up to SMS text message their phone number if they don't open the email (and follow up every 24 hr, 48 hr, etc) Obviously this wold require some sort of script that knows how to talk to the yahoo messenger, feed it the phone number, feed it the message, and then send it. I'm not very technical (just very basic html/css/js/php) so I have no idea where to begin on an undertaking like this... 1.) Can this be done? 2.) (if #1) What should I expect to pay for something like this?