Hi there,<p>I need to take note of existing content and extract everything as my new content without losing the source).<p>This question could be similar to Ask HN: How do you manage “knowledge” (https://news.ycombinator.com/item?id=16412343), but I'm not searching for a fully integrated system to take notes, manage the calendar and lose focus immediately trying to adapt to a workflow.<p>I'm searching for something to tag selections with preconfigured labels, comment using simple text/markdown and capable of visualizing the activity and exporting it as text.
I just found this yesterday: <a href="https://web.hypothes.is/" rel="nofollow">https://web.hypothes.is/</a><p>It allows you to use a Chrome plugin or a bookmarklet to annotate any page and save to an account. I do believe it has export functionality, but if not, it definitely has an API.