It will likely be several years (probably more) before I write a textbook, but it's something I've been finding myself pondering in the back of my mind recently.
I would like to distribute my book à la Lienhard; that is, freely available on a website. Additionally, I would like to distribute complete solutions to the exercises therein through the same medium. However, I wonder if
- educators might not adopt the book because the exercise solutions are easily found, and/or
- students might not get the most out of the book because the exercise solutions are easily found.
If I distribute the exercises in .tex format, like LeVeque, the first point could be mitigated by allowing instructors to customize them more easily. To the second point, I did about as well in classes where solutions were provided with the problems (and the problems weren't graded) as I did in ones with solutions provided after the due date. But I'm sure that won't be true for everyone, and I know that there are other factors.
So I pose to the educators and students on this site whether it would be a good idea to freely provide complete solutions to my freely provided textbook.
Note: I see this question as related, but it doesn't address the specific case of having a one-stop shop for solutions for entire sets of problems that is updated and cross-referenced correctly (i.e., no web searching required). Perhaps this question is even closer, but it doesn't address open-access resources.