Default browser behavior (OS X Safari) of cursor changing from an arrow to a hand on hover is a visual indication. Default browser behavior of links with focus having a blue outline is a visual indication.
If unvisited links aren't in the default browser color (e.g. blue), I don't want a site to attempt a "house style" for visited links. Don't make me think.
If unvisited links aren't in the default browser color (e.g. blue), I don't want a site to attempt a "house style" for visited links. Don't make me think.