Text Parts
If you're a big Community Server user, you've probably played with Text Parts but, if you haven't, you've got to check them out. In my blog on ooto.info, I've started adding a bunch of words that I can drop in square brackets that automatically (when the post is saved) get turned into links. There's a lot you can do with these and I'm only scratching the surface but try it out.
In the control panel under any blog, go to Settings->Manage My Blog's TextParts (CS2.0). and click Create New TextPart. The first field under TextPart name put the word you want replaced (CS). The second field allows you to create a link with TextPart (http://communityserver.org). I do this with the word "ooto" (ooto.info). Finally, drop in the text to replace with in the bottom field (Community Server).
I use this for names of people I reference to point to their blog and things like "CS" (Community Server) and "ooto" (ooto.info). BTW, text parts are not case sensitive so putting cs or CS in square brackets yields the same result.
For more info, search the Community Server forums for "text parts."