noteworthy wrote:
] Advertisements on websites are annoying, often breaking up
] text and flashing to get your attention. To stop about 99% of
] the ads on the internet from even showing, add the following
] code to your userContent.css file:
]
]
] I was finally sufficiently annoyed by obtrusive Flash
] advertisements at the Washington Post that I tracked down this
] information on hiding them from view.

If you use Mozilla/Firebird, the adblock plugin (http://adblock.mozdev.org/) is awesome. Unlike the standard "Don't show images from this server" you enter in URL's with wildcards, and Adblock can either render white space in place on any match, or remove it from being rendered (and thus not taking up any space).

This blocks ALL offending content, images/Flash/Java, everything

Ie:
*.doubleclick.*
*.fastclick.*
*/ads/*
*/ads.*

Blocking all types on Ads with Mozilla/Firefox