disconnect.me is a plugin for google chrome (and chromium) that works for digg, facebook, google, twitter and yahoo. I quite like it.
Having said that, I believe it's possible for a website to construct 'like'-style buttons which do not damage your visitor's privacy: it's just that the default ones supplied by the socials do.
Posted Jul 13, 2012 15:56 UTC (Fri) by valhalla (subscriber, #56634)
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A few months ago I read about sharenice in comment here on LWN and it seems to do what is needed here: self-hosted sharing widget that preserves the users' privacy.