In olden times, and sometimes newer times for many, you get all kinds of interesting searches that result in hits to your blog. But nowadays I get a lot of "navbar" hits, derived by someone hitting "Next Blog" on their navigation bar. I'm surprised this feature is apparently used as much as it is - I don't use it much and one would think there's less chance of someone finding a blog liked that way than through search engine strings. The strings at least have something to do with some subject you're interested in, while "next blog" is the very essence of randomness.
In the early days of blogging, you'd get all kinds of hits because blogs were really high up the totem pole on the Google search engine. Now not so much.