As there was another topic about which software is used to monitor LEB's and the Vanilla search function is crap, I decided to create a wiki page on the LET Wiki:

http://www.lowendtalk.com/wiki/monitoringsoftware

Please, feel free to edit and ADD software, I now only listed some thing I know, but there must be a lot more. Please try to provide a picture and a little overview, plus a link and demo if available.