<a href="#">link</a> | <a href="#">another link</a> | <a href="#">yet more linkage</a>
Result:Easy, but no context given to search engines. It's a list of links, so using HTML that reflects its nature is probably better than this.
<ul class="pipes">
<li><a href="#">link 1</a></li>
<li><a href="#">another link</a></li>
<li><a href="#">more links</a></li>
<li><a href="#">the last link</a></li>
</ul>
CSS:
.pipes, .pipes * {margin:0; padding:0; list-style:none; display:inline;}
.pipes {display:block; margin:10px;}
.pipes a {float:left; padding:2px 8px; border-left:1px solid #888;}
Result:All the list items have an inline display to aid in removing their formatting and attacking IE6 layout issues. Each link is floated left and features a border-left to accomplish the "pipe" visual effect.
...But what about that first pipe at the beginning? Well, one way would be to create a class named "first" and plop that onto the first list-item, and use that to reset its border to nothing.
.pipes, .pipes * {margin:0; padding:0; list-style:none; display:inline;}
.pipes {display:block; overflow:hidden; zoom:1; margin:10px;}
.pipes a {position:relative; left:-1px; float:left; padding:2px 8px; border-left:1px solid #888;}
This is almost identical to the previous example. The difference: the container list is set to hide overflow, and all the links are relatively positioned one pixel to the left, effectively sweeping the first pipe under the rug (or back in the little etched wooden box before the parents get home, if that was/is your thing).
Here's an example with bigger pipes. 3 pixels wide each, so the relative left position of each link is now -3, accordingly, instead of -1.