For this project I have used icons from these sites.
http://www.iconbazaar.com
http://www.iconarchive.com
http://www.barrysclipart.com
http://www.bitsela.com/freeart.htm
http://webclipart.about.com/gi/dynamic/offsite.htm
http://www.dgsoxon.org.uk

http://www.glencoe.com/sec/science
http://www.glencoe.com

Jewish Clip Art Links
http://www.ssdsrv.org/links_jewish_clip_art.htm
http://www.jewfaq.org/signs.htm
http://www.mechon-mamre.org/jewfaq/signs.htm
http://www.shamash.org/computers/graphics
http://www.fortunecity.com/roswell/avebury/18/jewish.html