Last week, I tweeted the following:
The best thing you can do to improve your web design work is to learn as much about typography as possible.
— Tom Kenny (@tkenny) December 12, 2012
Today, I came across Tommi Kaikkonen’ Interactive Guide to Blog Typography which is a great place to start to learn the absolute basics of typography on the web. It’s geared towards blogs but you can apply it across web design in general.