I am reading Founders at Work: Stories of Startups' Early Days, a collection of interviews to founders of some pretty famous companies, and some that failed famously like Visicalc.
The most interesting thing about the book for me is to see how clueless some of these people were when they started. But they made up for it by being young, single (i.e. could work 18 hour days, nothing to loose, etc) and persistent.
Still, I have definitely learned a few lessons from it, I recommend it.
Also, the link above is an Amazon Associates link. My first source of revenue? :)