The opposite of mediAgora?

How instant IM criticism tanks over-hyped movies:
The problem, they say, is teenagers who instant message their friends with their verdict on new films - sometimes while they are still in the cinema watching - and so scuppering carefully crafted marketing campaigns designed to lure audiences out to a big movie on its opening weekend.

"In the old days, there used to be a term, 'buying your gross,' " Rick Sands, chief operating officer at Miramax, told the Los Angeles Times. "You could buy your gross for the weekend and overcome bad word of mouth, because it took time to filter out into the general audience."