Kindle installed base?
somewhere I read the citatin that the Kindle is the most popular ebook reader in the United States, with approximately 43 % of the installed base for ereaders.
But I didn't document where I found that percentage, and my google-fu doesn't seem to be up to finding a good source for it, although I do see it used a lot as a sort of "common knowledge".
Does anyone have a good source for research that I can use to validate that figure?
Thanks!
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