How to write an effective tutorial.
The article itself is a bit strange (possibly the author's first language is not English), but the ideology behind it is sound.
An impressive looking tool for organizing projects into boards. Incorporates social media-like features such as the @name in Facebook to link to a person.
Very useful jQuery simulator which lets you use different frameworks and many other options. Especially useful for sharepoint development, because deploying/closing sharepoint is slow in comparison.