Here's a list of cool websites that you might find useful or fun. If you're interested in doily making, crocheting, patterns and stationery, please check out my Office page; I have a few resources there.
art
ASC_PAINT - draw your own ASCII art
SculptGL - online 3D sculpting tool;
ASCII banner - make ASCII banners in many styles;
Dither it! - puts dithering on your images;
web/html tools
Broider - personalized css border code generator;
NeoConfirmation Extension - prevents accidental deletions on neocities;
Hekate's Background Generator - cool bg generator.
Fraidycat - RSS reader
misc
Zun's old blog - that's it;
Zines by Iffy Books - a collection of cool zines;
Wiby - a peculiar search engine;
textfiles.com - enjoy!
Algorithms visualization by Chris Laux - learn about sorting algorithms and more.