1. Link to your various social profiles on your home page

On your home page, link to your profiles and add the rel="me" attribute to the links.

This may look something like the following:

<ul>
  <li><a href="https://twitter.com/aaronpk" rel="me">@aaronpk on Twitter</a></li>
  <li><a href="https://github.com/aaronpk" rel="me">Github</a></li>
  <li><a href="mailto:me@example.com" rel="me">me@example.com</a></li>
</ul>
<link rel="pgpkey" href="/key.txt">

Note: If you don't want visible links on your home page, you can instead use <link> tags in your html head.

<link href="https://twitter.com/aaronpk" rel="me">

You can also sign in with a PGP key if you don't wish to use a third party service.