SchoolRack is a site that advertises itself as a place for teachers to create websites and blogs to increase communication with parents and students. SchoolRack says that it is free of advertisements and that you can upgrade to a Pro account for a small fee.
Without creating an account myself, it seems to have a useful and easy to follow user interface. It also has a simple Teacher Search, making it easy for parents and students to find your site if the URL is not handy. When looking at one of the websites, there is an option in the top corner that allows you to click and receive an email when the website is updated, kind of like an RSS feed. SchoolRack looks to me like this site would be a great starting point for teachers hesitate about creating their own website.