"Don't Be Evil." Uh-huh.
These two events accomplish the exact same goal, dragging your disparate online bits kicking and screaming back under a single thumb. Note, especially in the latter, how every time you sign into Blogger, then open Google in another window, your username/email address is in the top left-hand corner. More importanly, I guarantee you any searches you attempt while this is so will invariably be logged in Google Web History - with or without Toolbar.