By John Gruber
WorkOS, the modern identity platform for B2B SaaS — free up to 1 million MAUs.
Amazon:
By July 2010, Kindle book sales had surpassed hardcover book sales, and six months later, Kindle books overtook paperback books to become the most popular format on Amazon.com. Today, less than four years after introducing Kindle books, Amazon.com customers are now purchasing more Kindle books than all print books — hardcover and paperback — combined.
★ Thursday, 19 May 2011