"Show me the money." That’s what nonprofits are asking of Facebook Causes pages. The Washington Post did a great article today that reinforces the value of nonprofits' using email as a core fundraising strategy rather then social networks. The numbers in the Post report, which were taken directly from Facebook Causes' own published statistics, show overwhelmingly that most nonprofits are poorly served by trying to use Facebook Causes for fundraising. Almost two years after Facebook Causes was launched, the tool still does not seem to be working for fundraising, except for a tiny group of nonprofits. Even for this fortunate few, the results they achieved on Facebook were reportedly dwarfed by the fundraising results that good old email campaigns and other tried-and-true methods achieve for nonprofits.