Here are a couple of recent articles that are definitely worth a read if you are thinking about starting a business:
Evernote Shows Startups: ‘Free’ Can Pay – by concentrating on making customers happy you can use ‘free’ products to make money. Also, don’t get hung up on the percentage of your customers who pay, but the number of customers who pay.
From the latest issue of Idealog a great read by Rowan Simpson about the Mythical Startup – most overnight successes take time!