Just thought of this nifty fix for those annoying sidebars on Geocities.com web sites. Inside of Internet Explorer add http://www.geocities.com address to your restricted sites list. By default "restricted site" means no JavaScript. Presto! No more sidebar. Find a geocities.com site and try it out.
For earlier browser 'tip and trick' posts:
How to block Google Adsense
The Internet Explorer Triple Click