Crypto-gram is a free monthly electronic newsletter
published since May 1998 by Bruce Schneier
, well-known cryptography
wizard and author of "Applied Cryptography
". It features summaries, news
pieces from the world of cryptography
and is well worth a read.
Since the URL might change and E2 hopefully will be around for a long time I suggest you do a web search for "Bruce Schneier" and "crypto-gram" if you are interested in subscribing.