What am I?

Eleven clues to help you guess, what we're talking about.

1. Some folks have it, some don't.

2. Those who have it would be devastated if it were ever cut off.

3. Those who have it think that those who don't are somehow inferior.

4. Those who don't have it may agree that it's neat, but think it's not worth the fuss that those who have it make about it.

5. Many of those who don't have it would like to try it (..... envy).

6. It can be up or down. It's more fun when it's up, but this makes it hard to get any real work done.

7. In the long distant past, its only purpose was to transmit information vital to the survival of the species.

8. If you don't apply the appropriate measures, it can spread viruses.

9. If you use it too much, you'll find it becomes more and more difficult to think coherently.

10. We attach an importance to it that is far greater than its actual size and influence warrants.

11. If you're not careful what you do with it, it can get you into a lot of trouble.

What am i?

Its Email, not your D$%^!, you pervert! :D