Devhints is a set of useful cheatsheets displayed in a stylish way
Pretty Awesome Lists crawls available awesome lists (e.g. programming, work, games, etc.) , collects interesting information about each link, takes a screenshot and then makes them pretty for you to explore.
Snippetty is a live coding assistant that lives in your system menu and hands you the right code snippet at the right time. It's an invaluable tool for anyone presenting during webinars, conference talks, corporate demos, podcasts, and more. And instead of making you use some clunky UI, it works with Markdown. Everybody loves Markdown!
Code Duet is small service where you can find a partner for pair-programming in a matter of minutes.