I know this has been posted on several other blogs, but I figured I'd make note of it here anyway, since some of you might not have seen it. Here's a compilation of 680 questions and answers from the "Sage Advice" column of Dragon magazine, starting with the first appearance of the feature in issue 31 and going until issue 134. That's not a complete compilation by any means, but it's a large one nonetheless and it's useful as an aid in seeing how both the questions and the style of responses changed over the years.
I'm well known as a critic of "Sage Advice," thinking the willingness to provide "official" solutions to matters not covered in the rules (as opposed to genuine omissions in them) revealed a shift in the way TSR viewed its role as publisher of D&D. What's interesting, though, is that many of the earliest responses to questions are quite humorous and reveal a certain disdain for the demands of players to have ex cathedra statements with which to bludgeon their fellow players into submission (not to mention bewilderment at the sorts of things some player felt needed answers). I didn't start reading Dragon until the late 50s or early 60s, so I missed out on many of the really amusing "Sage Advice" columns, alas.