Leitz and Leica Equipment:

• CameraQuest's Classic Camera Profiles - Lots of information and opinions about Leica (and other) camera stuff.
• Farines-photo.com - A good introduction to Leica screw-camera compilation.
• Leica Camera AG - Manufacturer's Home Page
• Leica Wiki (German) - similar to English language LeicaWiki with many differences.
• Leica.overgaard.dk - An excellent Leica resource - be sure to see the camera and lens compendiums.
• Pacific Rim Leica Pages - Good resource for early camera information and images.
• Summilux (French) - Wonderful, inclusive Leica site, even better if you know some French.
• The Leica Pages (German) - Beautiful site for early Leica literature, even better if you know some German.

Pre-owned Leica Equipment

• Leica Forum Classifieds
• Rahn Photgraphica Auction
• Tamarkin Rare Camera Auction
• Westlicht Photographica Auction