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1.
To sneak around on your friends, ex-boyfriends/ex-girlfriends, enemies, etc. profile's on Facebook to find out what they have been doing.
Since I've been away at college I decieded to do some facebook research on my ex-boyfriend and I found out he took some girl out the other night.
by clh October 15, 2007
 
2.
using the social network to learn information about a prospective mate, coworker, etc. aka stalking
girl: I'm upset. I really like john, but while doing my daily facebook research, I saw some girl named dena wrote on his wall about how much fun she had last night.
by kandiisdandy August 13, 2009