I'm not sure how captionable this is. I just thought it was a prime example of inappropriate marketing.

Use Yahoo Messenger to tell someone,

"You have bad hair!"

use AOL Instant Messenger to tell someone, "D00D WTF OMGLOOOLOLLLLOLLLL!!!!!1"

use AOL Instant Messanger to tell someone "A/S/L?"

Use Yahoo! Instant Pipebomb to tell your boss "Your head a-splode."