I came across these EE links today:
http://www.electronics2000.co.uk/
http://www.miscel.dk/MiscEl/miscel.html
http://www.technick.net/public/code/cp_downloads.php?did=14
http://www.aaroncake.net/electronics/software.htm
http://ourworld.compuserve.com/homepages/Bill_Bowden/
http://www.discovercircuits.com/list.htm
http://www.alldatasheet.com/