<a href="about.html">About Me</a>
<a href="http://www.cnn.com">About Me</a>
<a name="top" id="top"></a>
To link to an anchor in a document you would form the link like so...
<a href="#top">Back to Top</a>
This is a simple way to send an email via a link. Whenever possible I recommend against using this method as it requires the user to have a default email client set up on their machine.
<a href="mailto:youremail@mail.com">Email Me</a>