Getting Real: Free Web 2.0 Book
37 Signals has released a book that is a collection of essays about starting and running a Web 2.0 company. There are some gems in here, and it is worth browsing if you have any interest. The also sell PDF and paperbacks, but the content is available online for free.
Getting Real: "Getting Real
Here are the 16 chapters and 91 essays that make up the book."