I always check my rejections - I have them go to a speciall folder in Ouotlook Express. I then use that folder to make a list of all the bastards who rejected me so I can get them later! You hear that UW!! Your on my list!
Sometimes i think i miss some of the rejection emails if they dont have the word rejection or declined in the subject. But if I see it I read it and if its not clear why I got rejected I will usually ask so I can make changes later.
I dont usually read the approval emails because they always tend to say the same thing "your link was approved and will be added to the directory on the next rebuild" and "Javes.com has approved the following freesite for inclusion because your so fucking cool"
I usually make a mental note of who is accepting me though by seeing who they are from.