Breaktime - Break time is an app that reminds you to stand up every chosen amount of time.
rubular - A ruby based regular expression editor
Coworker Coffee - Coffee with a different coworker each week
RegExr - RegExr.com is an online tool to learn, build, and test Regular Expressions.
Serendipity - Serendipity is a PHP-powered weblog engine which gives the user an easy way to maintain a blog.
RegEx Generator - RegEx Generator is a simple-to-use application that comes with the brilliance of intuitive regex and is also helping you out to test the regex.