Currently undergoing slashdotting, outfoxed seems an interesting tool for firefox. More social bookmarking, with a clear icon on your toolbar telling you if your network of informers think it's good or not. You can also get your google results sorted, based on the recommendation level from your network. You can sign up, using me as a referral and can see my reports. If you do sign up please mail me so I can get your reports about what you find good and bad.

One thing to watch, it exports all your book marks. Your internal web pages, like printer configurations and wireless access point configuration pages, your bank URL, your credit card URL (I can't seem to delete that one for some reason), your porn (your porn, not mine, I obviously don't look at porn <g>). So make sure you edit your default reports and cull (if you can) bookmarks you don't want to share, then republish your information. I've configured it to publish the reports on my server via FTP, but I don't see any way of sending updates every time. So if things are out of sync I've forgotten to manually publish.