DoGooder brings its "advertising with a conscience" to Google Chrome
Unlike extensions such as AdBlock, DoGooder doesn't actually block a publisher's original ads. Instead, it loads them and then covers them up with its own ads. That's a good thing for publishers, since it means their ad impressions won't be affected. DoGooder also maintains a whitelist of websites which have similar advertising practices, and the extension allows users to flip back to the original ads if they wish to do so.
DoGooder's ads are unobtrusive and small -- most of the ones I saw were well under 30KB. That's not much of an additional payload and I'm more than willing to do it to cover up obnoxious animated ads (DoGooder's ads are typically nice-looking and static) and do a little good.
The replacements are especially welcome on sites where I do actual reading -- and I love having DoGooder turned on while sifting through items in Google Reader.
Released earlier this year for Firefox, DoGooder is still a work in progress on Google Chrome. On sites with multiple billboards (like Pirate Bay, for example) the extension only replaced one or two ads out of four. Still, if you're a Chrome user and looking for a way to block annoying adverts and support some good causes DoGooder is well worth installing.
Grab it from the Google Chrome Extensions Gallery.