a little tip, use
iGoogle
-> click on add stuff
-> search "webcam" , hit "add it now"
-> click the igoogle logo again
-> modify the new webcam gadget , upper right corner arrow icon
-> hit "edit settings"
-> I set "Image" and "URL" setting to "http://www.nuerburgring.de/fileadmin/webcam/webcam.jpg" as well as refresh interval "60" and "auto refresh" = true
-> save & done
webcam will be refreshed every 60 secs by igoogle now
bye
You might want to resize the picture to original size 640*480 inside the webcam. I had to customize the igoogle theme to "one column" so everything is visible :