I typed penguin blog into google today and this is what came up first. Predictable really... I don't believe a Penguin can do its own shopping. For the record, I was looking for the book publisher.
While I am on this, while I was in Graduate school some friends of mine wanted to set up an all boys club named after Penguins (The Penguin Club) on the basis that (apparently) Penguins only mate once a year. Happily, I was able to decline my charter membership.
Lorcan Dempsey (who may not like the intro to this link) has some thoughts on the design of the Penguin paperbacks here.