Tool: http://validator.w3.org/ This is a tool used to validate HTML codes if it is web safe.
Reference: http://www.w3schools.com/ W3Schools is a reference page for web designing including HTML, CSS, Javascript, PHP, and many more.
Project: http://www.trsp.net/cow/ Cascade on Wheels is a visualization project that expresses data of vehicles uses in cities on to maps.
Maker: http://www.bluewhaleapps.com/default.asp Blue Whale is an app development company that can collaborate with an app-designer at any stage of the development.
Forum: http://stackoverflow.com/ Stack Overflow is a forum that covers information about basic programming to high-end algorithm issues. This site could later be more useful as we get into designing algorithms for the long-term project.
Inspiration: http://instant-eyedropper.com/ Just like the eyedropper tool on Photoshop, I think it would be interesting to create a device that can identify the RGB color values of a color on prints.

