<b>text</b> - makes text bold

<i>text</i> - makes text italics

<p> - seperates paragraphs with blank line

<font size=7>text</font> - changes font size 1-7 (7 = largest)

<font color=red>text</font> - changes font color to red

<font face=impact>text</font> - changes font typeface
  common fonts: times, helv, arial, verdana, impact, garamond

<a href=http://website.com>link</a> - creates a clickable link

<a href=mailto:name@usf.edu>link</a> - creates a Mailto link

<img src=http://graphic.gif> - will display a graphic from the web.

Remember: HTML is just a set of tags. The first one, ie <b>, turns the attribute on, The second one, ie </b>, turns the attribute off.