[[Explain.]]

Uses the AOLServer web server with embedded TCL 8.2 interpreter:  Multihreaded, automatically caches interpreted code for speed.  Has builtin, easy to use hooks to connect to databases like Oracle, Sybase, PostgreSQL.

OpenACS is a web toolkit built on top of AOLServer.  It has a strong community-oriented focus, with emphasis on bulletin boards (aka message forums), news, classifieds, as well as ecommerce functionality.  It has a very strong templating system as well.

Users:  greenpeace.org[http://www.greenpeace.org], openacs.org[http://www.openacs.org], www.travelerstales.com (most functionality hidden in admin pages)[http://www.travelerstales.com], www.pps.org [http://www.pps.org] .  Probably the most popular and most customized site is photo.net [http://photo.net]


















http://www.openacs.org