Lifehacker just did a comparison of popular privacy extensions and called Disconnect the best (over Ghostery and others): http://lifehacker.com/the-best-browser-extensions-that-prote...
byoogle is the mastermind behind Disconnect. :)
That makes me never want to try the extension, no matter how good it may be.
(Kidding)
Though I've been uneasy since Ghostery went closed source[1] but it's so easy to use and light on the browser. Disconnect is partially open source[2] too, and ABP is fully open source. I guess I might switch back to ABP if complains start for Ghostery.
[1]https://github.com/jonpierce/ghostery [2]https://github.com/disconnectme/
Without auditing, calling a server open source is meaningless.