Teaching & learning resources, including those created by me, and those created by others.
http://sketchup.google.com/3dwarehouse
Warehouse of 3D objects for Google Sketchup. Objects include buildings, vehicles, furniture and much more, allowing students to create their own works of 3D art and design. This can be used in traditional design and technology subjects, or, with a little imagination, in subjects such as English. For example, ask students to create a scene, in which they then set a story of their own writing.
http://mathworld.wolfram.com/
A free resource from Wolfram Research, built with Mathematica Technology.
http://skype.com/
Skype is a free (but not Open Source) desktop client that allows voices and video calls to be made over the web. In addition, it supports texts chat and screen sharing (very useful for technical support). By purchasing credit, it is possible to call from a computer to a land line or mobile phone number. Skype is a great tool for connecting classrooms and hosting video conferences.
http://sumo.fi/
Sumo provides a free, feature-rich, online bitmap painting tool. This is a great alternative to desktop applications such as Photoshop and GIMP.
http://mathsnet.net/
Interactive mathematics in education
http://getdropbox.com/
Dropbox creates a folder on your computer, which is continuously synchronised with a personal, secure space on the web. The system gives you 2GB of online storage for free, and you can purchase more as required. This is a great way to share files online, either to the public in general, or to a selected audience. The desktop integration makes it extremely quick to use, and the fact that it works on all three major operating systems (Linux, Mac, Windows) means it can be used by all.
If you have ever found it impossible to email a large attachment, Dropbox provides a great solution.
http://www.colourlovers.com/blog/2007/07/15/colorful-beauty-in-nature-birds/
Great colour palettes inspired by birds.
http://manyeyes.alphaworks.ibm.com/
Many Eyes makes data sets available to users so that they can create their own, shared visualisations with others. Visualisations provide an intuitive, interesting way to represent data, and can be a great introduction or summary to a topic.
http://peazip.sourceforge.net/
Peazip is a free, open source application for compressing and decompressing all sorts of file archives, including .zip, .rar and .tar.gz amongst others.
http://colourlovers.com/
Everything to do with colour.