Here are some really useful websites for photographers and artists.
http://www.absolutearts.com - News from the artworld as well as announcements of exhibitions and contests.
http://www.apogeephoto.com - An online photo magazine. Some decent articles aimed at pros.
http://www.artandculture.com - Links to info about all the arts, jazz, painting, dance, photography, and more.
http://www.artmarketing.com - Take an online class on marketing art.
http://craiggoldwyn.com - Tips on imaging, photopainting, and links to cool websites. Subscribe to my email newsletter.
http://www.commarts.com - Communication Arts is a magazine about creative visual communications for designers. A great source of inspiration.
http://www.computer-darkroom.com - Ian Lyons offers tutorials, tips, tricks, and reviews on his website "Computer-Darkroom." Good stuff.
http://www.dcresource.com - Digital Camera Resource Page has news and reviews about digital photography and gear.
http://www.dcviews.com - The latest news on digital cameras with reviews, great news features, and almost 2000 links!
http://www.digitalimagingmag.com - Digital Imaging Magazine's website. Gallery, contests, back issues.
http://digitaljournalist.org - Excellent articles, commentaries, and images aimed at the professional photojournalist.
http://www.dpreview.com - Very good reviews of digital cameras, scanners, printers, news, product announcements, and other useful articles.
http://www.edigitalphoto.com - Digital Photo magazine online. Huge list of links, especially supplier links, but there are only names and urls, without descriptions. Worth a visit.
http://www.kodak.com - Tips and tricks, a glossary, film specifications, and an basic photo course. You can even buy satellite photos.
http://www.nationalgeographic.org/photography - National Geographic magazine is renowned for some of the world's most beautiful photos. Their online photo section contains galleries, a photo of the day, wallpapers, photo news, tips on photography, buying a camera, getting cameras and film through customs,, photographer bios, FAQs ("How do I become a National Geographic photographer?"), an archive of movies of seminars and lectures by their photographers, and even info about how to license National Geographic images.
http://www.nytimes.com/library/tech/reference/
indexartsatlarge.html - The New York Times view of art online.
http://www.onemodelplace.com - Models.
http://www.photographyreview.com - Reviews, film, accessories, community forums, critique of your work, community assignment.
http://photo.net - A community of people trying to improve their photography.
http://www.photoshot.com, - From England, this is a photo portal that even offers free ISP services. The Open Gallery allows you to exhibit and sell online.
http://phototravel.com/ptn.htm - Photo Traveler Guides for Photographers has ideas on where to go and what to photograph in North America.