For every 100 hardcover books Amazon sold in the past three months, the online retailer sold 143 books for its Kindle e-reader. What do you think?

"Wow. Maybe I should try to write an e-book instead of a regular one."

Danielle Shenton • Systems Analyst

"This is the end of an era. I hate to think of an entire generation being deprived of the pleasure of letting a book fall open to the dirty parts."

Joe Smith • Unemployed

"Well, if you're reading a hardcover book, strangers try to start conversations with you. If you're reading off a Kindle, people just stare at your awesome Kindle."

Mick Aveling • Gear-and-Spline Grinder