Basically, if we can teach people to help themselves, we reduce the need for posts that ask the same question. We could also create an even stronger environment of learning. In such an environment, users can contribute back to the forum, rather than just being a time waster (or worse). Another benefit would be that such a guide could also ease tensions between green users and guru's. This would be possible because topics like "omg help me I can not do this at all" would hopefully be replaced with ones like "I have tried doing the following, but could not solve my issue".
Now, I feel that a guide to google would need to be peer reviewed before being posted here. Perhaps it could be community driven, where people could add to it. Just like the "What are your top tips for a Newbie?" topic. That said, I have written a guide that I have not posted online just yet. If you would like to see my draft and edit it, I can post it to github.
Let me know what your thoughts are on the matter, and hopefully we can all work together to make the forum a better place.
The same works for feature/function lists as well. 