One thing that I think is always of use to world mappers is information about climates, and I'm sure each of us has our own cache of links. In doing some more research on climates, I came across this link.
There appears to be only a relatively brief overview of the forces interacting to bring about the various climates, but the images interspersed within the text are some of the clearest I've found, yet. Many of them I have actually seen separately elsewhere, as well, but they function extremely well here as a whole.
Definitely not an end-all to climate research, but very likely a valuable addition to a budding Climate research database.