I know we encourage people to search here and that we'll never know how many actually find their answers without having to post their questions, but it seems that a very large proportion of the non-programming questions (I stay away from the VBA side of Excel if I can help it) revolve around Sumproduct/Sumifs and Vlookup or Index/Match.

DO has links in his sig to help people, but I'm wondering if it might be a good idea to either make links to these topics more obvious on the site or put a good tutorial on here for each of them.