I've decided to try something new on my blogs: LinkWithin.
I've installed the widget on some of my other blogs. It is incredibly easy and works very well with the blogger/blospot platform. I really like the way it looks--you get attractive thumbnails of related posts below every individual post on your blog.
I can definitely see how this could make your blog "stickier"--encourage people hang around and read a few more posts.
I'll give an update in a few days and let everyone know if using LinkWithin has changed my statistics.