Perhaps this is how to do it. On Wednesday, Volokh posted the following:

Pledge break: Some blogs ask their readers for money to help operate the blog. That's quite understandable, but we fortunately don't need that....

We're in it for the eyeballs. (Yumm, eyeballs.) So if you like the blog, just let your friends know about it -- perhaps take a blog post you really like, pass it along (together with its URL) to people who you think would enjoy it, and tell them that there's a lot more where that came from. Or not: We're happy with just your eyeballs, too.

And Volokh's hits jumped from about 12,000 Tuesday to about 16,000 Wednesday. (Yes, that's a lot of readers.) Maybe there were other reasons (someone popular linked?). But interesting.

I'm not very subtle, am I? :)