Coworker Coffee - Coffee with a different coworker each week
Bumble - Bumble is a social network that allows you to feel empowered while you make those connections, whether you’re dating, looking for friends, or growing your professional network. One first move on Bumble could change your life.
Serendipity - Serendipity is a PHP-powered weblog engine which gives the user an easy way to maintain a blog.
Tinder - Tinder is how people meet. It's like real life, but better.
Twine - Twine is an open-source tool for telling interactive, nonlinear stories.
Hinge - Find people you want to date through your friends on Facebook.