tinterwhore 

one who's always tinternetting aka internetting aka "surfing" the world wide web

-they dont need to speak in any certain way
-they may just be someone thats ALWAYS signed into msn
-they tend to check there bebo/myspace/facebook frequently(not always though)

Example 1:-
tinterwhore 1: gawd i wuz online 4 lyke 16 hours yesterday
tinterwhore 2: ha i beat you i was on for 18 and a half
tinterwhore 1: oh i 4got bout the 3 hours i wuz on 4 in the mornin, that makes 19 :D
tinterwhore 2: D:

Example 2:-
The cause/effect of boredom

tinterwhore by your mum's mum March 26, 2008

Twitterwhore 

Someone who notifies everybody on twitter about eveything that happens. even if its not interesting at all

Jon:Omg i saw a bird i need to post this on twitter
Ryan: Dude jon your such a Twitterwhore

Twitterwhore by skeet bro May 14, 2009

Interwhore 

A person who partakes in the actions of a whore over the internet.

girl: I just met this amazing guy in Nevada yesterday over myspace, and I had internet sex with another guy in Virginia.
guy: You are such an interwhore.

Interwhore by the_evil_king November 3, 2009