HTML search proved worthless

So I tried to learn HTML so that I could post a richer blog or when I am commenting other blogs, or even when I have to contribute to a discussion at school through Nicenet.org. I went to Google and searched "HTML" and I went to the first site and it told me the stuff I already know, and then I went to the next 4 and just gave up (no I am not a quitter, but it not something I want to invest a lot of time into, if the first site were to have exactly what I was looking for in easy language I would probably still be on it, learning).But I just couldn't understand it. I can understand the bold the italics and the underline but I just can't seem to get anything else.