If you have been following some blogs via the Google FriendConnect “Followers” gadget, you can easily get the list of blogs you have followed so far. This will be so helpful to you in managing blogs you are following.
Though Google has discontinued the Google FriendConnect , nevertheless I still read updates of blogs am following right in my Blogger dashboard, which is now even very easy to scan through via the new Blogger dashboard.
If you know the list of Blogs you are following, you can easily unfollow some blogs that you think no longer worth following.
I hope it helps.