I know I can use this technology in personal life, as it will make viewing information on the internet that I'm most interested in alot easier to access. I can set up a link to it in my favorites, and then go right to it with one click, instead of having to have multiple favorites. For school, I can use it for education related blogs and sites, and keeping up with fellow teachers so we can share information.
Teachers can use this technology by first having students create their own blog relative to a specific class or subject. They can then use readers to include all other classmates' blogs in the reader, so that everything is located in one easy to find place, and make it easier to keep tabs on everything (I imagine this is very similar to what library2play does, as the "leaders" of this could have our L2P blogs in an RSS reader for more instantaneous access to be able to check and see how we are doing).