Star Chart - Stellarium is a planetarium software that shows exactly what you see when you look up at the stars. It's easy to use, and free. Read more about Star Chart.
Pixenio - Ready-to-use websites for your online business identity
Google Sky Map - Google Sky Map is a free hand-held planetarium that allows you to identify stars, planets and more.
The Evolution Of Webdesign - See how one webpage has evolved since 1991
Code NASA - 253 NASA open source software projects
GoArchitect Mars - How would you create a new world?