Wikipedia is probably the most trustworthy source around. It can be wrong so you should still verify it if you want to be sure. But, I don’t think there’s another site with a large amount of knowledge that is so consistently accurate.
What you should have learned from school is that you don’t cite it in your papers, because it’s not the original source for anything. But, you definitely should be using it for your research and using its citations to go deeper.
Wikipedia is probably the most trustworthy source around. It can be wrong so you should still verify it if you want to be sure. But, I don’t think there’s another site with a large amount of knowledge that is so consistently accurate.
What you should have learned from school is that you don’t cite it in your papers, because it’s not the original source for anything. But, you definitely should be using it for your research and using its citations to go deeper.