Excellent Websites for teachers and students:

Great Math Apps for Ipads. Information courtesy of Anthony Levy (Math Coach SW5)
Math App for Ipads

Educational Origami is a wiki that is about the integration of technology into the classroom and shifting our educational paradigm. It has great articles on the Twenty First Century Learner and Teacher. It also looks at Structures of Observed Learning Outcomes (SOLO) and how to apply Bloom's Taxonomy to the digital classroom.
Educational Origami

For over 116 interactive manipulatives from the National Library of Virtual Manipulatives click here
For Teacher lessons and activities from Illuminations click here
Isometric Drawing Paper Isometric Drawing Paper
Dynamic Paper Drawing Paper

Geometer's Sketchpad:
Please click on the live link to access the MathGains site. Geometer's Sketch Pad

Graphing Calculators: Information courtesy of Chris Lanis, VP Lambton Kingsway.