This is a great step forward. If annotation moves along as a standard and is supported by browsers then it will mean a more connected and robust web. It essentially means that comments and notes will be baked into the web itself instead of using third party tools like Disqus.
But this standard is just the beginning in terms of the work required to get to a vibrant ecosystem of truly interoperable clients and services. What’s not covered are how users might annotate in groups or what kind of permissions can be set. Should replies be threaded? Can other users be followed? To help encourage these kinds of discussions, and also to support the implementation of this technology by publishers and others, in December of 2015 we formed the Annotating All Knowledge coalition, which now includes over 70 major publishers, platforms, institutions and companies.An excerpt from Annotation is now a web standard