The Wayback Machine - https://web.archive.org/web/20131105111316/https://delicious.com/post?url=http%3A%2F%2Fwww.ebookreaderguide.com%2F2011%2F03%2F13%2Fkindle-nookcolor-ipad2-sony-overdrive-which-ebookstore-has-most-ebook-titles%2F&title=Survey%20of%20Kindle%2C%20Nook%2C%20iPad%2C%20Sony%20and%20OverDrive%20eBook%20Store%20Collection%20Size&notes=The%20size%20of%20the%20eBook%20Store%20is%20an%20important%20consideration%20for%20potential%20buyers%20of%20ereaders%2C%20and%20therefore%20also%20for%20companies%20producing%20these%20readers.%20However%20despite%20claims%20of%20millions%20of%20eBooks%20in%20collections%20of%20some%20leading%20ereaders%2C%20anecodotal%20evidence%20of%20dissatisfied%20customers%20unable%20to%20find%20a%20sought%20after%20book%20has%20become%20significantly%20common.%20This%20survey%20by%20eBook%20Reader%20Guide%20has%20collated%20data%20that%20helps%20to%20clarify%20the%20true%20size%20of%20competing%20eBook%20Stores%20and%20thus%20help%20consumers%20to%20make%20informed%20decisions.%20