Goog's stock dropped because I turned off my Adwords account. ;^)
Seriously though, if they drop millions of previously profitable sites below the fold in favor of a bunch of trash MFA results, what do they expect? When we profit, we share with Google via Adwords, when we stop making money, so do they, simple as that. Hopefully their pain will be a wake up call. I'm a GOOG stock holder, but this drops means little to me since they don't pay dividends. I've however been losing money like crazy since April of this year. Funny how I'm down > 10% and so are they.