A handy tool for testing the legibility of different typefaces under all sorts of conditions.
If you insist on having a fixed header on your site, please, please, please add this script to your site. I often use the spacebar to page down so this would be a life-saver.
This looks like a really handy service from Readability: gather together a number of related articles from ‘round the web and then you can export them to a reading device of your choice. It’s like Huffduffer for text.
A cute website that’s a call-to-arms against low-contrast text on the web.
Jackson is gathering data to test on-screen readability. Sign up and join in.
An excellent bookmarklet designed to help you read more easily on the web (by hiding all that filthy, filthy advertising).
A good, if somewhat dispiriting, overview of Artificial Intelligence. (There's some nice typesetting on this page)
The devil can cite scripture for his own purpose... and now I can cite Nielsen: "...use a liquid layout that stretches well for any resolution, from 800x600 to 1280x1024."
Garret Dimon runs through some of the options available when using CSS to improve readability.
Andy Hume has written a superb article about typography on the Web.