goldgraph
Thanks for putting in the work to make this approachable, plenty of sites cover the same ground but most do it badly, and a quick visit to goldgraph confirmed this one stands apart, simple language and useful examples without anyone trying to sell me anything along the way which I really appreciated.
maverickmint
Glad I gave this fifteen minutes rather than the usual three minute skim, and a look at maverickmint earned the same investment, time spent on quality content is rarely wasted but the reverse is also true and learning which sites deserve which kind of attention is part of being a careful online reader.