I've been getting more and more into web typography recently, and I found these articles very interesting. Everyone has different ideas about how to design web interfaces, and these articles have similar taste, to have a simple, elegant, non-cluttered design, with text as the primary focus. Other people have different ideas. They are all interesting, but don't take them too seriously, there is no "right" way, just a lot of different ways. That said, these are some good ideas:

The Elements of Typographic Style applied to the web
The 100% Easy-2-Read Standard
Web Design is 95% Typography (2)
Five simple steps to better typography
Starting with CSS: revisited
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