I think this is a really useful tool and a great way of saving teachers time. I recently did some training for teachers on how and why they should set up their own home page, so I'd like to share the presentation from that training session here. The link is: http://www.youtube.com/watch?v=5TMP_TDD9PY
There is also presently a discussion of RSS and Hompages taking place between the Learning With Computers group (EFL teachers mainly based in South America, but increasingly becoming more international). If you want to be involved in this discussion you can sign up to join the group at: http://groups.yahoo.com/group/learningwithcomputers/
You can also follow the discussion on their blog at: Learning with Computers
If you are interested in creating your own personal homepage or doing training to help other teachers create homapages, you can find the tasks and instructions that I refer to in the presentation here: Creating a personal homepage
Really I can't recommend too strongly, that every teacher should have their own RSS homepage. It's the best way to keep informed and stay in touch with our very rapidly changing profession.