What exactly constitutes a viral?
This is quite well established to be a real phenomenon...
( WiL is addicted to BestOfferBuy dot com, Sat 4 Jul 2009, 21:07, Reply)

A viral is a video / photo that has got very popular on the internet
although recently a viral has been associated with companies making videos deliberately for viral marketing purposes.
( magnum, Sat 4 Jul 2009, 21:14, Reply)

The monkey man was quite obviously
referring to viral advertising.
(mookay pick em up picklehead, Sat 4 Jul 2009, 22:18, Reply)