Yeah, I spend my time on an open-source library used by thousands of people and supported said library, helping users with problems and contributing to documentation. So dumb to link to already available, good resources instead of building a better alternative. I wish I wasn't so lazy! </sarcasm>
Out of curiosity, can you link to one of those good resources, and to an equivalent w3schools page?
Setting aside questions of Google rank and discoverability, I suspect the "good resource" will have much more information, will be more correct, but will also be more verbose, may assume more prior knowledge from the reader, and will be less likely to provide instant gratification.
There's a big difference between a good resource for an experienced developer and a good resource for an absolute newbie, and I haven't seen that addressed yet.