College students who use Facebook have significantly lower grade point averages (GPA) than those who do not.

According
to the study by doctoral candidate Aryn Karpinski of Ohio State
University and her co-author Adam Duberstein of Ohio Dominican
University, students who express their membership regularly to the
200-million-member social network do worse in school tests. "In fact,
the majority of them who Facebook daily do worse by as much as one
whole grade," said the researchers.

Karpinski said, "our study shows people who spend more time on
Facebook spend less time studying. Every generation has its
distractions, but I think Facebook is a unique phenomenon."

The study, which will be presented at the annual meeting of the
American Education Research Association on April 16, surveyed 219
undergraduate and graduate students and found that the GPAs of Facebook
users typically ranged a full grade lower than those of nonusers — 3.0
to 3.5 for users versus 3.5 to 4.0 for their non-networking peers.

The same thing for sajha too dude..

Moral of the story: Those who steal pictures from FB and post it to Sajha are surely going to be repeating college ;) haha

hahaha..absolutely wrong...I got 4.0 GPA .i used both Sajha.com and Facebook. 24/hrs....Sharing of knowledge doesn't lower your GPA. Infact I got lot more and More

hya ma every one  hour ma sajha and facebook check garchhu! ani hapta ko 2 patak keti pani hanchhu, gpa 3.9  chha kyare! it does not work for all!

The study, which will be presented at the annual meeting of the
American Education Research Association on April 16, surveyed 219
undergraduate and graduate students and found that the GPAs of Facebook
users typically ranged a full grade lower than those of nonusers — 3.0
to 3.5 for users versus 3.5 to 4.0 for their non-networking peers.

I don't see why this is absolutely wrong. I kinda agree with this result - social media are addictive, and they're good ways to procrastinate, which will hamper one's performance if one isn't good at time management.