Do you denote laughter with a "haha,” "hehe," "lol" or emoticons? Researchers at Facebook have analyzed a week of posts to see which forms of expressions are most popular among certain users.

Lol — Bitch, please OR I have nothing to say. lollllllllll — Yo, that's pretty funny. el oh el — So unfunny I feel the need to type like this. haha — Funny but not worth much of my time.

“But I’ve transitioned to ‘haha’ instead of ‘lol ... laugh in moments that aren’t technically funny at all,” he said. “With ...

'I found a chip so huge McCain intervened – you won't believe what they gave me' ...