Is Twitter involved at all in the annotation web standard [1]? There was a post and some discussion on HN a few days ago about it [2]. Seems like Twitter would be a natural fit to become a major player or popularizer of annotations and annotation infrastructure. Notwithstanding the decentralized nature of the standard, it would probably evolve to have a few major structural providers. If it takes off, one could imagine a future with billions of tweets and tweet threads anchored to source material of every kind -- adding optional value to the material, and driving traffic and value to and through Twitter.

[1] https://www.w3.org/blog/news/archives/6156 [2] https://news.ycombinator.com/item?id=13729525