Digital Dust

I wonder if digital books on digital bookshelves gather digital dust, just waiting to be read.

If you have books on bookshelves at home, you know that some of those books gather dust. They are those books that are not read often. The ones that sit there and sit there and sit there just waiting to be read. Not the reference books that you refer to often. Not the books that you read over and over and over again to your kids at bedtime. Not your favorites that you read every day or every year...