ll the different visual programming languages (Graphical Programming Languages)
Overview of the Prototype Javascript Library
A collection of patterns and modules for responsive designs.
If you aren't yet using Puppet or Chef for managing your *nix infrastructure, you should seriously consider it. The benefits are enormous. Frankly, I don't think you __can__ manage a modern infrastructure without using Puppet, Chef, or reinventing a configuration management framework with your own custom scripts. However, you can't use both Chef and Puppet together, so which should you choose?
