for example, a forum like webmasterworld, e.g.
sometimes i visit a thread, then click `back`, and visit another thread and so on...
after many visits, i found that i am lost, i don't know if a threads i have visited or not
one of the solution is to use CSS a:visited style, so that I can track which threads I have visited
however, my designer is not very happy with that...it make the layout no consistent and look ugly if too many visited links...
so i want to ask, besides `visited`, which approach you think can balance the design layout & usablilty?