I agree, I always get w3schools at the top of html/js results. I actually installed a Chrome extension to allow me to manually block google results from certain

I agree, I always get w3schools at the top of html/js results. I actually installed a Chrome extension to allow me to manually block google results from certain domains, to prevent me ever clicking on a w3schools link. It just hides the result as soon as the page loads. Another annoying one is Postgres ('postgres add primary key'), which always has an ancient version as the first result, sometimes as far back as 7.x.