MentionedMe.com was another website I recently built with the idea of providing a very quick solution. I wanted to offer a site that would text you if you got a new mention on twitter, pretty simple process, and one that has uses for people monitoring their username mentions. I decided to once again use the SMS API form twilio.com as a starting point since I’ve been using it quite a lot in recent projects, and then used YQL to perform twitter searches on usernames that are added. The end result is that every 15 minutes, it does a check, and if there is a recent mention of your name, then you get sent text message saying “you have [insert number here] new mentions for @[insert your name here]”. I used the YUI framework to quickly throw together the site design, and it’s been working well.