Testing
Agilstry – Elisabeth Hendrikso’ns site for all things test (including a great interactive example of the Myers Triangle problem)
Development
Quackit – “teaches beginners how to create websites”
Coding For Kids – ” finding ways to support education of programming and computational thinking for the current and next generations in the UK”
Codeacademy – Learn Java Script through online interactive exercises
Learn Python – collection of sites containing interactive exercises for learning Python in the cloud
Rob Lamberts post on Testers Learning to code – contains some useful links for learning various languages