I happily mock the nonsense "Save Our Show" campaigns that try and save failed TV shows by tweeting, Facebook liking, online petitions, sending crap to a network and other such nonsense.
They do little more than waste time and money, and swamp the poor network's mail room staff.
On the flip side, the current Kickstarter campaign for a Veronica Mars movie allows fans to contribute to something that could actually produce results. Money.
The next time somebody suggests you tweet, sign an online petition, or mail something to network remind them about the money.