A great series of videos from Climbing Magazine about a lot of the essential skills you need to start climbing - well worth a look
Some slightly more advanced videos, for those looking to start leading outside
Website of the BMC, has very useful information on all aspects of climbing.
General info and latest news on British rock climbing. The forums are a great place to find an answer to any climbing related question ...or aimlessly waste time!
Some more useful videos and articles
Has a very useful advice section