While it's debatable whether the leader of the free world might need to know how to use a computer in order to understand its impact on everything from global business to open government, the Internet is generally agreed upon to be a handy tool for spreading one's political message and raising campaign cash. And I've noticed, in recent months, that there seems to be a trend: Republican presidential candidates are getting less traffic to their official websites than Democratic candidates.

This is a graph of the Reach (unique visitors) to the websites of the four Republican candidates I heard the most about during primary season: Mitt Romney, Rudy Giuliani, Ron Paul, and Senator John McCain. It's easy to see that McCain's traffic is better than that going to the other candidates' sites. Now, let's add one Democratic candidate to the graph, the presumptive nominee Senator Barack Obama.

The inclusion of the Democrat so radically alters the scale of the graph that all of the Republican candidates' sites are squished down to the bottom; you can hardly see their peaks and valleys anymore. That's the only thing I changed between the two graphs: it's still Reach, it's still the same level of smoothing and same time-frame.
So not only does McCain avoid computers, but his constituency does too? Is that true? I know plenty of Republicans who use the Web, so I'm not trying to make some red state/blue state generalization about Democrats being more technically inclined. Do McCain's likely voters already know what they need to know about him? Are Republicans likelier to get their information from other media? Has McCain sent more mailings? Will this trend hold through November? Please speculate (be civil or I'll delete them) in the comments.
