If 2010 was the year eBooks went mainstream, 2011 will be the year indie eBook authors go mainstream.

According to Smashwords founder Mark Coker, indie eBook authors are becoming more professional and sophisticated, and they’re starting to climb the best-seller charts without the assistance of a publisher. 2011 will be the first year traditional publishers feel the need to compete against the indie ebook alternative. Here are Coker’s predictions for the new year:

1.Ebook sales rise, unit consumption surprises – Ebooks sales will approach 20% of trade book revenues on a monthly basis by the end of 2011 in the US, yet the bigger surprise is that ebooks will account for one third or more of unit consumption. Why? Ebooks cost less and early ebook adopters read more.

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