. . . it takes you 15 minutes to scroll from top to bottom of your bookmark file.

. . . your eyeglasses have an image of your computer screen burned into them.

. . . you find yourself brainstorming for new subjects to search for.

. . . all your daydreaming is preoccupied with getting a faster connection to the Internet: 28.8...ISDN...cable modem...T1...T3.

. . . even your night dreams are written in HTML.

. . . you find yourself typing "com" after every period in your letters.com

. . . you turn off your modem and get this awful empty feeling, like you just pulled the plug on a loved one.com

. . . you refer to going to the bathroom as downloading.

. . . you turn on your intercom when leaving the room so you can hear if new e-mail arrives.

. . . all of your friends have an @ in their names.

. . . your dog has its own home page.

. . . you check your mail. It says "no new messages." So you check it again.

. . . your phone bill comes to your doorstep in a box and signature is required.

. . . you code your homework in HTML and give your instructor the URL.

. . . you wake up at 3 am to go to the bathroom and stop and check your e-mail on the way back to bed.

. . . your wife makes a new rule: the computer can't come to bed.

. . . you forget what year it is.

. . . you start to tilt your head sideways when smiling. :-)

. . . you begin to wonder how on earth your service provider is allowed to call 200 hours a month "unlimited."

. . . your wife says communication is important in a marriage so you buy another computer so the two of you can chat.

. . . as your car crashes through the guardrail on a mountain road, your first instinct is to search for the "back" button [and when that doesn't work, look for the reset key].

. . . you find that you uncontrollably reach for the space key between words while speaking.

. . . when using your phone book or long printed documents, you wish you could apply a search parameter.

The following were found in NetDummy Humor.

. . . you decide to stay in college for an additional year or two, just for the free internet access.

. . . you laugh at people with 28.8 modems.

. . . you start using smileys :-) in your snail mail.

. . . you find yourself typing "com" after every period when using a word processor.com

. . . you can't correspond with your mother because she doesn't have a computer.

. . . when your email box shows "no new messages" and you feel really depressed.

. . . you don't know the gender of your three closest friends because they have nondescript screen name and you never bothered to ask.

. . . you move into a new house and you decide to "Netscape" before you landscape.

. . . your family always knows where you are.

. . . in real life conversations, you don't laugh, you just say, "LOL,LOL".

. . . after reading this list, you immediately copy and forward it to a friend!

. . . your computer crashes or something goes wrong with it, you take it to the shop and find out you have to leave it there for up to a week and you start crying. (from ozzyman)

Know any more Internet Addiction Signs that would fit here?
Email me and I'll add them to the list