Online museums

They say that the Internet brings the world to your finger tips (or perhaps nobody said that and I just made it up from different advertisement texts), and although it's not quite the real thing, some websites really do make the experience as close to, or even better than, the actual experience itself.

Museum catalog is one such area where I think that you get almost the same benefit from visiting the website as you would visiting the museum itself. Of course, one can argue that the physical visit the the museum is an integral part of the whole museum experience, but some museums have such an awesome website that it's hard to argue that point convincingly.

Guggenheim's website offers a very impressive catalog, not to mention thorough narration.

British library features a very unique feature that allows you to experience flipping through pages of a selection of some of the most important books of western civilization. (The rest of their online features are also excellent.

I can spend hours just poring through this stuff.