On the Ibuildings blog Cal Evans has written up a post urging everyone (not just developers and not just those in the PHP community, really) to be careful about what you spread around as good content and quality tutorials to the masses.
The web has made it easy for anyone to become an instant pundit, regardless of their background. The tools exist so that anyone can quickly and easily publish anything and call it a fact. [...] We as a community must do two things to help not only ourselves but also to improve the quality of the on-line help available.
He suggests two things we, as a community, can do to help with this problem - point out the technical articles that are, to put it nicely, just plain wrong and be sure to only pass along quality advice. The helpful hints and tutorials are only as good as the ones that are shared. Be sure they're one of "The Good Ones" to keep the quality of the community alive.