http://nicolasgallagher.com/css-drop-shadows-without-images/demo/

• css
• drop
• shadow
• dropshadow
• css3

http://www.cycloloco.com/shadowmaker/

• googlemaps
• icons
• shadow

http://www.ploughdeep.com/onionskin/

• css
• drop
• shadow

http://users.hszk.bme.hu/~hj130/css/before_after/befter_dropshadow/index_nopos.html

• css
• drop
• shadow

http://nontroppo.org/test/shadow.html

• css
• drop
• shadow