MyBlog is the name of our Blog software for the xAppOS web framework. It provides an easy way for our clients to maintain a blog, filled with rich content and syndication in a variety of ways - email subscriptions, RSS, ping services, Ping.fm, and so on.
The most recent update to MyBlog added the support for what we call Substitutions. This is a feature that enables the blog author to define content they want to include into a number of blog posts easily. By defining the substitution content once, they can then embed that into blog posts by inserting a single "placeholder". The substitution content is magically inserted onto their website.