zgrillo2004: Liberals and communist. both the same thing
I can only come to three reasons why so many Americans have that completely and factually wrong;
1. They dropped out of school very early on.
2. They are brainwashed.
3. They choose to ignore the facts (and creates their own realities)
Those two ideologies have vastly differences when it comes to things like minorities, markets and trade, progress and individual/personal freedom. In fact, they're almost polar opposite in many things.
Liberal ideas came from the Age of Enlightenment (from German "clearing up"). In an odd way, you actually hate yourself because America was founded on liberal ideas from Europe when King of England wanted to dominate the colonies, and early Americans made the constitution (an act of intellectual liberality). Your "for-fathers" or "founding fathers" were considered liberals (though, classic).
I could go on about the other part but I think most people know the differences.
But yes, please be a good citizen now and continue to spread fud. ;)