If we imagine oft-posted texts to be a kind of "organic astroturfing" (perhaps not so organic!) then we could also imagine looking at Snopes to identify them before even getting into an argument. This one came up on my Facebook feed recently and I can't help but notice that the positively portrayed charities are more military in nature and are shown as being selfless, while the negatively portrayed ones tend to be more liberal and are shown as being corporate and greedy, existing in reality only for the self-aggrandizement and personal enrichment of their managers.
This is pernicious because it meshes into the Tea Party outlook of sneaky liberals (itself surely an echo of the sneaky Jew) and isn't actually so easy to refute without some research. This makes it pretty darned interesting to me. How spontaneous was this? Would it be at all possible to find out where it came from?