[throwaway729]

> The disruption I'm expecting to happen is quality CC licensed content

Bingo! But there is still money to be made here.

Bundle a high quality open source textbook with tons of extra examples, auto-graded quizzes/assignments when possible, cheater detection, etc.

Provide regular updates so that Google doesn't know the answers to all the homework assignments/quizzes. Scrape the answers that are provided by google and incorporate them into the cheater detection.

Also provide a bit of analytics on top of the quiz/homework infrastructure. Or at least provide robust excel export so that instructors can figure out if there are clusters of students struggling with this or that concept.

And then sell the bundle and give some kick-back to the author(s) of the open source text (because it's the right thing to do, but also because the authors are thought leaders and will plug your product if they feel you're providing a valuable product at a reasonable price without screwing anyone).

Trying to write better textbooks than seasoned and altruistic professors is a losing battle.

[funkymike]

One important service that the existing textbook companies provide is editing. That's the gap that seems to be unaddressed by having professors self publish.

[throwaway729]

I don't agree.

Editing for content or style?

Style editing is usually detrimental IME. Especially when the style editor doesn't understand the content and is just applying typographical rules.

And content editing is usually done by fellow professors or students. Which if the book is open source will happen anyways as new professors use the book in their courses and notice errors.

[cycomachead]

Publishers provide style, content/grammatical editing, domain experience and pedagogical review.

Most professors don't have strong backgrounds in pedagogy and even those that do benefit from having others edit their work.