Useful links
Website Development
Handy generator that takes an image that you upload and turns it into a favIcon ready for inclusion in your web-site.
Excellent resource for learning web technologies. Tutorials are available for a variety of web techniques and technologies.
Validation tool to check your XHTML code is standards compliant.
The driving force behind establishing standards for Internet technologies. A great place to find out what's up and coming in the world of web development.
Computing Concepts
Excellent information about IEEE arithmetic - including the IEEE 754 floating point specification. If you have an interest in computing mathematics you might want to read this.
Programming
The charmingly named developers of Dev-CPP, the popular and open source C++ development IDE that comes bundled with the minGW implementation of GCC. If you have no idea what that means - it's a nice text editor that comes with its own C++ compiler built in.
Applications
A really detailed page about how Excel references colours for its cells and the codes for each colours.
