Pastebins have become an important part of sharing code with colleagues. Sites such as Pastebin & Pastie.org are extremely popular because they're easy to use and very effective in letting people compare notes on source code, especially in a support setting.
Remy Sharp wanted to take the pastebin concept a step further, past the static posting of code. His idea, which he tossed around for 6 months, finally came to fruition in the form of JS Bin, a new pastebin site with a twist:
JS Bin is a form of paste bin, but with a twist. It allows you to also include the HTML and CSS to provide context to your pasty. As such, it means you can actually run the JavaScript and pass this on to a colleague to help to debug.
This is a great idea as it lets you troubleshoot your code while seeing immediate results. The feature list is well thought out as well.
The ability to inject many of the popular JavaScript libraries is especially important and I would highly recommend individual project teams to contact Remy directly to have their libs included.
To give this a run, I'd suggest going to the JS Bin site and putting it through its paces. In addition, Remy has produced two videos which go into detail on how to leverage JS Bin: