I've used w3schools a fair bit, but hardly for their web stuff. I've used it for looking up SQL, XML/XSD/XPath and such when I had some specific question. Foun

I've used w3schools a fair bit, but hardly for their web stuff. I've used it for looking up SQL, XML/XSD/XPath and such when I had some specific question. Found it quite helpful, and still use it as a quick reference every now and then.