Assuming the success of the Kindle partly accounts for Amazon’s crazy stock price, there may be a way to assess its value.

Thanks in part to the popularity of Amazon.com’s wireless Kindle device, the e-book has started to take hold.

This year, thanks in part to the popularity of Amazon.com’s wireless Kindle device, the e-book has started to take hold.

This year, thanks in part to the popularity of Amazon.com’s wireless Kindle device, the e-book has started to take hold.

Book publishers are exploring new ways to sell books in digital form.

Book publishers are exploring new ways to sell books in digital form.

It would seem to be a magazine’s dream: Take something you have already published and sold, repackage it and distribute it without paper or ink expenses.

Hundreds of small, independent publishers will have easier access to digital book technology under a new service offered by Perseus Books Group.