the web site www.flyzed.com will help you a lot

you need a code to log in, that I will send you to your private mail box.

you will see that for the flights there is a little emoticone that is in different color deppending on how full is the flight... green, yellow and red... which means goog for standby, poor and bad respectively.

it helps to plan flights, airlines, and listing, as it can be used to list for several airlines like lufthansa, swiss, sas, spanair...

for me the best part is the listing system, because you can list in any flight you want to standby, and you dont have to call to each airline reservation number and explain them you are flying on a staff ticket... blablabla...