Sudden Bust in Traffic

I just noticed something today, I don't know how it really works but it has got to do with how blogger indexes the sites. My blog has been new so i'v been trying to keep a track of the traffic I get to it. Today was the first day I noticed that traffic jumped soon after I updated my blog. I guess I'll keep a track of traffic after every updating and try to see how it works. I guess the people visiting after the update are mostly casual browsers but maybe if they like the blog they will become regular visitors.