If you appreciate aesthetically pleasing things - photos, drawings, comics and such - poke around the Deviant Art site. There's so much amazing stuff that you won't notice the hours passing.
The work of Netherflux (aka Nich Angell in the UK) is sometimes melancholy, sexy, funny or dark, but always beautiful. Check it out. You won't be disappointed.
While you're there, check out the work of Angelreich, a Polish photographer and another of my favorites.