The New Attitude blog has a posting up entitled Recommending books without ruining souls. The problem that it attempts to deal with:
A few weeks ago there was some discussion about a book we recommended. The book was by an author we love and respect but someone pointed out that he holds a position we don’t think is scriptural. Can we still recommend the book if we don’t believe everything the author believes?
Of course, this is a bigger issue than just one book or one author. How much and what kind of error can a book contain before we just can’t recommend it to anyone anymore? What does practicing a humble orthodoxy look here?
In short: How can we recommend books to our friends without turning them into heretics and ruining their souls?
For more, you'll have to read the rest of the posting.