And that highlights the problems publishers face in a turbulent, topsy-turvy marketplace where success seems ever harder to guarantee.
Facebook has more recently begun to fix some of the problems publishers had been complaining about, however.
One of the problems publishers face today in making their content more readable on mobile devices is that there are multiple, competing formats available for this purpose.
Counterfeits are also a problem for publishers.
They explained that book discovery is a crippling problem for publishers (as data has shown).
Another problem for publishers is that consumers have been making fewer trips to shop since gasoline prices have been climbing, which means there are fewer occasions for them to peruse tempting displays of magazines at checkouts, newsstands or bookstores.
"But we're clearly not out to pirate books," she added, noting that libraries traditionally buy one or more copies of print books and circulate them, which has not been a problem for publishers.
The Spotify Play Button solves a big problem for publishers looking to stream music from their websites.
An additional problem with publishers' test banks is that the evaluation of questions in them has revealed that they may not always be as rigorously assessed for reliability and validity as would be necessary for summative assessment (Masters, 2001).
Facebook has had a similar problem with publishers looping pre-recorded videos and calling them live, or just putting up a computer graphic countdown and calling it Live.
