The "Glencoe Biology" book can be found online on retail websites, academic websites and science websites. It can be downloaded for free in some places, requires payment on retail websites and requires a user name and password to download the book from scientific websites.
As of 2014, the book is available on a wide range of retail websites, including Amazon. Student editions, teacher editions and lab manuals are available. Look for free downloads of some chapters on high school and other academic websites. Some data mining websites provide links to finding the books and redemption codes to gain online accessibility.