Enjoyed this quite a lot: The Man Behind the FedEx Logo
I like the look of the Kmart and Sears logos, which are prominently displayed at the top of a Wharton article on a merger between the two companies. I'm not sure I can see them combining together into a strong brand - a little like the difficulty of pulling the companies together. (Yes, logos aren't brands. But it makes a nice metaphor in this instance.)
The Tivo Logo is fun. Tivo users may see lots of logos, as a new way of getting viewers to watch ads is revealed.
An article on Pantone, the color people, reveals how important color may be to a brand.