A peak into how the 'Next Blog' feature works

I started a blog for my wife's Discovery Toys business located at dublintoys.blogspot.com. Since it's fairly new, I didn't expect to get hits from search engines on it yet. But I did get hits from Blogger's Next Blog feature. That feature takes a visitor from one Blogger blog to a random Blogger blog. But here's the interesting thing. Instead of getting hits evenly distributed throughout the month, we only recieved hits within a one hour period on one particular day. The rest of the hits are from me either visiting or updating the blog. The above graph shows the spike in hits resulting from the "Next Blog" visitors.