I've been asked how I created the headline animator that that I use as my email signature,  like the one shown below:

Xavier Pacheco

It simply, really. Its a feature of www.feedburner.com.  Once you have an account set up you simply navigate to the Publicize tab for your feed and then configure your animator under the Headline Animator section as shown below:

From there you can configure your animator as you like given the various settings.  Have fun!