Sign Languages in the Yahoo! Directory

HandSpeak
Offers subscription-based dictionary of several visual languages including American Sign Language, International Sign Language, and signs for use with babies and pets.
www.handspeak.com
Sign Writing
Writing system which uses visual symbols to represent the handshapes, movements, and facial expressions of signed languages.
www.signwriting.org
Wikipedia: Sign language
Article covering sign language, a language which uses manual communication instead of sound to convey meaning - simultaneously combining handshapes, orientation and movement of the hands, arms or body, and facial expressions to fluidly express a speaker's thoughts.
en.wikipedia.org/wiki/Sign_language
Signing With Your Baby
Advocates use of sign language to communicate before your baby can talk. Includes links to related articles, books, and videos.
www.signingbaby.com
Sign Language Assessments
Provides an overview of different sign language assessments as well as information on testing and test development.
www.signlang-assessment.info
Dictionaryofsign.com
Online international dictionary of sign language. Allows users to send in their own video clips of sign language for use in the dictionary.
www.dictionaryofsign.com
International Bibliography of Sign Language
Contains titles of academic literature and abstracts focusing on modern sign language research, Deaf culture, and interpreting.
www.sign-lang.uni-hamburg.de/bibweb
ThinkQuest: Norwegian Sign Language
Alphabets, numbers, and the language of the deaf culture in Norway.
library.thinkquest.org/11942/norskslan.htm
About.com: Sign Language
Includes information and links on ASL and sign languages from other countries, baby signing, fonts, poetry, teaching, learning, and more.
deafness.about.com/od/signlanguage/Sign_Language.htm
Sign Language Studies
Journal of scholarly articles and essays relevant to signed languages and signing communities.
muse.jhu.edu/journals/sls
Baby Sign Language
Resource for baby sign language signs, videos, flash cards, and wall charts.
www.babysignlanguage.com