On this page I've put the best sites I've found on the internet for models. Some are retailers with whom I've dealt with, some are information sites and some are collectors sites.

Retailers
Bob's Models An amazing site with regular updates and a large range. They are the best mail order retailer I have dealt with, and the models if ordered by post are delivered mint and quickly, and are packaged with unbelievable care.
Motorsport Products Nice site with alot of information on rare models. Postage arrives quickly.
ModelZone My local retailer (Plymouth branch, 22 Frankfort Gate, City Centre, Plymouth PL1 1QD). Great knowledgable service with great displays and products on offer.

Other Sites
Minichamps Collectors GB Useful behind the scenes news on Minichamps models.
Micheal's Minichamps Site An Australian site featuring hundreds of photographs of most of the Minichamps F1 cars released since 1992.
Minichamps News & Forums Useful site featuring Message Boards and Classified Ads for models.
Yuui's F1 Scale Models Small site. Has a brilliant feature however, where you can suggest models and vote for them that you want to be released. Also has a massive database for almost all Minichamps models.
F1 Models Good site if you want rare models, but be prepared to pay a high price.
Minichamps The Offical site of Minichamps Pauls Model Art.
Faroodi A nice collectors site featuring a Museum, For Sale Section and a comprehensive links page.