Part wiki. Uses Flash to show characters and blocks of charactes.
'Unicode 4.0.1 encodes more than 50.000 characters on the Basic Multilingual Plane. Please help in decoding those characters! Right now there are 2853 submissions about 1190 characters.'
Unicode Consortium [Unicode.org]. The official site for Unicode. The Unicode Consortium was established in 1993 by a consortium of companies including Apple, Microsoft, HP, Digital and IBM.
Code Charts as PDFs. I like how they include code points for similar glyphs.