Since in http://meta.programmers.stackexchange.com/q/2003/620 there is a sentiment that at least some book recommendation questions are off-topic, would it be helpful if book lists can be added to the tag wiki?

(maybe sponsored adds too!)

(There are even ideas to put a book voting system too! See http://stackoverflow.com/q/5098367/377657)

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(**Edited** July 30th)

@ChrisF's answer inspires me an alternative implementation: Searching for [tag:scrum] + [tag:books] should give me a list of posts of book recommendations for scrum, right? We just need to add a convenience link on the tag wiki to do this search.