I wanted to share few links that Swapnil shared with me in the past. All of the links were really great. So I am sharing it here. Also if possible, just take an hour to go through the links. They are really good.
If you guys find any good links other than the ones I give below, please post them as comments.So that this post can help someone who needs good references for the specs in the future.
https://gist.github.com/zhengjia/428105 :capybara cheat sheet