Some good links on the subject …
http://yuiblog.com/blog/2006/10/16/pageweight-yui0114/
http://www.crockford.com/javascript/jsmin.html
http://dojotoolkit.org/docs/compressor_system.html
http://www.thinkvitamin.com/features/webapps/serving-javascript-fast
http://www.die.net/musings/page_load_time/
Filed under: Performance, User Interface