C. Nowell,
For regular trading hour flash quotes try: http://www.cme.com/cgi-bin/flash.cgi
which is the Chicago Merchantile's quote page. It changes every ten minutes during regular trading hours and fixes with the day's last quote until trading re-opens. For Globex financial and stock index futures after trading hours try:
http://www.cme.com/cgi-bin/gflash.cgi
You can also use :
to find quotes etc. on those things traded at the Chicago Board of Trade. It has charts and studies available as well.
I especially like the Merc's homepage but there is a tremendous amount of information at the CBoT web site. I also use the Chicago Board Options Exchange page which is www.cboe.com
peace