Would you fine folks mind telling me what is the benefits of each image (on DB7025 or in general), which are the most popular ones and why?

I'm using the latest version of the official software (flashed it like a month ago), but I'm having trouble finding information on the other editions.
I'm actually having trouble finding proper information about the DB in general. I can't find good wikis, forums or websites that would have guides, how-tos and software.
I mean, DB needs a good all aroud site like that, which wouldn't be in bloody german only.

Help? Tips?