If you're like me, and you have a growing interest in utilizing HTML5 not only to its fullest, but also syntactically correct, you should check out the HTML Periodic Table of Elements. It's a great resource not only to identify the different HTML tags that are available, but if you click through to the Mozilla links, you'll learn in which context the tags should be used.
[caption id="attachment_106" align="alignnone" width="973" caption="Periodic Table of Elements"][/caption]