That if enough people blog loudly about an issue, they can make a difference.
Microsoft was rumored to be negotiating to purchase Claria, a company that has been associated with spyware. Everybody from Ed Bott to Dwight Silverman wondered why Miscrosoft would do such a stupid thing.
Today word was leaked that Microsoft is not going to buy Claria. One of the reasons- the adverse PR that would have resulted.
Mark one up for the good guys.