An addiction to Wikipedia or other such sources of knowledge.
John: I wonder how long the average lobster lives. I'll Wikipedia it!
3 hours later...
John: Did you guys know that America has one of the highest standards of living in the world?
Joe: you have a wikidiction
Someone who is addicted to wikipedia
She found all the information she needed for her homework on wikipedia; "what did people do before wikipedia??!" She admitted she was turning wikidictive.