Photozone.de is a website for technique, diagrams and figure lovers.
The website is filled with complete and technical reviews of lenses and DSLRs, and you can see for yourself there are a lot of them, enough to give newbies a headache!
Don't worry, you can find the definitions needed to understand the reviews by searching the website.
Klaus Schroiff has written many articles to explain the basic and less basic concepts of photography. A very resourceful website!