Immedietly signing onto AOL Instant Messenger when your computer powers up. Most people do this to ensure that their long shallow existance is buffered with their friends and people they never met with too many numbers in their screen name. Only the true 1337 users of the "AIMernet" us this to check to see if a ganked WiFi internet connection is legit.
Jimmy signs on to the AIMernet to see if his emo friends are on so they can go into a chatroom and type nothing, they are so hardcore.
Ted signs onto the AIMernet to check to see if the WiFi detector he *cough* bought is legitimate.