"Foxnews.com averages around 12 million or 13 million monthly unique users, according to Nielsen Online, rarely approaching the 35 million to 40 million uniques that leaders Yahoo News, MSNBC and CNN regularly deliver in aggregate."
I hate to rely on "analogies" because bullshit analogies are what drives most conservative thought [see, "if only we let college students have guns" and "Mexico wants to reconquer New Mexico, Arizona and California"].
However, I know a few FoxNews viewers who have the internet (or as they still call it "America On-Line"), they are the only people I know that mass-forward bullshit emails. Those people don't browse much on line, they just get their Spam of the day and forward it to the rest of us for *sighs* and *giggles* and a 30 second reply citing Snopes.com's evisceration of the bullshit.