Complete Lens List
I'm fairly new to this forum, and I thought about treating ya'll with a helpful gift in your search for lenses, or so I believe.
In fact, I've tried to compile as many lenses as possible (almost 1,200), in a various brands (19 different ones, from Canon to Zeiss) and different types (Zooms and Primes), from various times (since 1924). This is no test chart (DPreview has quiet a few of them), but it will actually show you the similarities and/or differences with previous iteration of lenses, and other brands. One will realize, that you shouldn't fall for a new lens at once, as the Marketing Guys suggest.
The file also contains a comparison sheet of SLR/DSLR and telemetric cameras.
Download and enjoy