Somewhere in the net I've seen a nifty way to mark the visited links. Every link, which I visited, was marked with a check mark on the right beside the link. At first I just wondered how it was done. Then when I received a new Macworld there was the details how to do it.

So here is the way (how it was explained in Macworld):
In CSS include the following lines:

/* sets how the links should be displayed */
a {
   text-decoration: none;
   color: #333;
   padding-right: 13px;
}
/* actually shows the image beside the link */
a:visited {
   background: url(checkmark.gif) right center no-repeat;
}


I modified it somewhat and applied this only to specific links (by class):

a.tipItem:visited {
   background: url(http://www.romanzolin.com/images/link_check.png) right center no-repeat;
   padding-right: 23px;
}


And marked the links, which I want to behave like this with class "tipItem":

<a class="tipItem" href="http://www.romanzolin.com/">


And the result you can see on my Techniques page