Visions of Science Photographic Competition - Includes the aims of the competition, categories (which change each year), rules and on-line entry form, together with the previous year's winners. 
Kick Photo - Describes nationwide service shooting schools and youth sports images. List of picture holdings for sale, especially rugby union, and samples of work. Full contact details.
Photo Link - Examples of aerial and commercial photography, undertaken worldwide. Large aviation picture library with stock shots.
Stylingworld.com - A directory listing stylists, photographers and associated services and includes magazine with news and features for the industry.
Photoassist.co.uk - Database with classified advertisements for assistants, private forum and sample galleries.
National Museum of Photography, Film and Television - Based in Bradford. Gives location, opening times, special events and list of permanent exhibits. Shockwave required.
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