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APL Book Sale
An APL book seller with many titles that are out of print, hence unavailable anywhere else.
APL Quote Quad
The site for the SIGAPL publication.
APL-Journal
A German APL publication.
The Journal of APL
Various articles and onward links about APL and J. Created and maintained by Dogon Research Ltd. Interesting articles on APL2C, J, K, and APL.
Vector Front Page
The Journal of the British APL Association