A few months ago I started on a guide for programming VEX robots with RobotC, partly to help me refresh my memory over time, and also to help teach people new to RobotC. Originally this was going to cover the whole of RobotC, but I realised later that it would be way too long! So instead I have started a series of guides for RobotC.
The first one, The Beginners Guide to RobotC is now at a publishable state and so I have uploaded it to the website.
You can find the guide here.