rsync folder exclusion tips

I just would like to share my reasearch on how to exclude a folder with rsync.
The man pages uses the form FolderName/, but that excludes all folders with that name whereever they are stored on the bakup source.
I had a more simple wish; to exclude some specific folders from the backup source.

This works UPDATE: this method doesn't work anymore. Please look at new posts below for correct syntax.

/FolderName/

The list is comma-separated. My media backup exclusion looks like this:

/c/media/BitTorrent/,/c/media/Temp/

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Note: How to access folders with spaces in their names on ReadyNAS/Infrant Linux. Example with a folder named "- FolderName":

cd ./-\ FolderName/

More info in this thread: Step-by-Step: Rsync to Local USB (note that TeknoJnky's reply is wrong)