I recently posted up a SharePoint how to video covering creating and managing email notifications. As promised, I have now created a companion document covering the material that you can access via my SlideShare (along with plenty of other documents I have created). The direct link to the document is:
http://www.slideshare.net/directorcia/getting-started-with-sharepoint-alerts-3796685
and you can view it online as well as download it.
As always let me know what you think.
CIAOPS 