http://luminous-landscape.com/ - a wide range of essays and information on analogue and digital photography
http://www.apug.org/ - Analog Photography Users Group - for those who love the traditional technology
http://www.daguerre.org/ - one of my favorite media - the daguerreotype
http://www.alternativephotography.com/ - old and forgotten photographic processes
http://www.pinholeresource.com/select_images.html - lensless photography
on the web have a look at http://www.photoblogs.org/ - a listing of photoblogs (mostly very clichéed and with little to say, though some have high production values)