My post on the link between democracy and sex appeal marked the first time I was linked by the mighty Instapundit.
As you can see, it had quite an effect on my hit counter:
There's a good number of hits from other blogs in there too, but the spike is mostly due to the massive traffic-directing power of the über-blogger himself, Prof. Reynolds. (The fact that he hyperlinked the word "SEXY!" in all caps couldn't have hurt, either.)