I've put this page together as a directory of useful web-based resources, mainly for the benefit of my clients so they're mostly business or internet related.
Business Link - Startup Guide - A comprehensive set of articles on all aspects of starting up in business
The UK Patent Office - Great function for searching records of Designs, Patents and Trademarks
Companies House - Search their databases online and avoid pinching someone else's name!
Business Link - Protecting Your Intellectual Property - Loads of great articles on protecting your IP, from patents to non-disclosure agreements
DTI Small Business Guide to Electronic Business Regulatory Requirements - Wot it says on the tin really - essential reading
Business Link - Online Marketing - Business Link advice on online marketing
To Link or Not to Link - An article on how to be savvy about link exchange requests