Source: Luis Puerto's Blog
Published: 10 February, 2019
I just discovered Hypothesis which is a service to annotate and highlight articles, posts, pdfs or whatever text you want and find all over the web and in any site. All their tools are open source and free, and they can be checked here, which make the services even more attractive to me. They’re also a non-profit organization, if you are wondering if there any commercial interest in the tools they’re developing.