I have been making daily posts this month, partly to see what people read on a given day, and what they keep on reading. Quite a few of the posts turn out to have a hit graph that looks like a shark fin. Here is the one for What is the LINPACK rating of Conficker?
What the graph shows is that there are no hits before the post is published (of course!), then a spike when it first appears and for a few days after, ending in just a few hits by a week later or so. After that it’s up to Google, industrious visitors or self-referential posting to raise the hits again.