As New Services Track Habits, the E-Books Are Reading You (NYT)

Before the Internet, books were written — and published — blindly, hopefully. Sometimes they sold, usually they did not, but no one had a clue what readers did when they opened them up. Did they skip or skim? Slow down or speed up when the end was in sight? Linger over the sex scenes?

A wave of start-ups is using technology to answer these questions — and help writers give readers more of what they want.