American Sign Language Browser
An online American Sign Language (ASL) browser where one can look up videos of thousands of ASL signs and learn interesting things about them. From Michigan State University. Uses Quicktime.

HandSpeak
ASL dictionary compiled from Deaf World Web's Sign of the Day feature. Animated black and white photos. Alternative translations for English words with several signed equivalents.

ASL Dictionary by Subject
200 signs in 13 categories: adjectives, expressions, basic communication, colors, family and home, food and drink, miscellaneous, places, school, sports, time, verbs, weather.