There are several relatives in my family tree who have books written about them. I mention their books in the biography section of their profile, but would it be inappropriate to provide a link to a site like Amazon since it is a for-profit site? I know in the rules we're not supposed to be selling anything on the site, but this is strictly informational for people who might like to click on the link just to see the books. It has absolutely nothing to do with making a profit in any way.
I looked for the rules governing this sort of thing to refresh my memory, but couldn't find them.
