Not Enough Ads? Install Adbar.
An anonymous reader writes "Jesse Ruderman brings the worst feature of Opera, Advertisements, to Firefox with his extension Adbar. According to the page, 'adbar displays Google ads related to pages you view. Because the ads are relevant, they are occasionally useful. When adbar isn't displaying ads from Google, it displays Firefox-related things such as silly Firefox slogans, ads for other Mozilla software, and requests for donations to the Mozilla Foundation.'"
The FAQ says it works in AdSense test mode, so Google doesn't pay anyone or charge anyone. It's probably possible to hack it and distribute it as a "customized" version for your users, though.
Google doesn't index user sigs, so stop trying to "Google Bomb" with them.
Took like 20 seconds to find the answer to that. From the adbar page:
"adbar uses the "test" adsense mode, so advertisers don't pay Google and Google doesn't pay anyone."