Britannica blog is a blog by the encyclopedia people. With a varied content everyday, you will receive short articles on a number of topics. I love reading it everyday in my RSS reader. It can be a good blog to subscribe for home educating parents, teachers and older kids. Many of the posts are such that they can even prove interesting for younger kids. which can spark interesting discussions or even researches. For example take a look at Rediscovering the bond between human and horse. Some content may be inappropriate for younger kids or contrary to Islamic shariah so adult supervision is recommended. You can follow the blog on facebook or twitter as well.