What are some of your favorite websites? Mine would have to include:

http://www.archive.org/web/web.php - I love trawling through the early days of the internet, or through webpages that no longer exist. I've even been able to find ancient mods I thought were gone for good! Invaluable service.

http://tvtropes.org/pmwiki/pmwiki.php/Main/HomePage - Got three hours to spare? Surfing through these pages leads to ever more must-read articles, more addicting than even Wikipedia for endless tangents. Insightful stuff about all our precious literary foibles.

http://xkcd.com/ - If it hasn't been covered by xkcd, it's probably not relevant to our modern human condition. Hilarious comic and oh so true in its observations. There's an xkcd for every occasion (or so it seems.)