[dolinsky]

Previously visited links show up as the default purple for me in Chrome. Maybe it's due to a particular plugin you have installed?

[haasted]

No, I tested in three browsers[1] prior to writing my comment, just to avoid getting caught in something like what you suggest. :) The behaviour seems consistent across all three, independent of whether I'm logged into my Google account or not.

[1] Firefox, Chrome and IE.

[mdwrigh2]

Interesting. Links show up as purple if visited for me as well.