www.LearnerStuff.co.uk  - Free mock theory tests and information on learning to drive.  

www.2pass.co.uk - a complete Learner Driver resource centre.   From help on how to apply for your licence to help with both theory and practical tests.   

www.passplus.org.uk/ - Information for once you've passed your test.  

 Practice your parking - Just for fun, a game to practice parking.