All my non-technical reads are done in Kindle, so it takes care of synchronizing bookmarks, highlights and notes. When work permits I can read non-technical stu

All my non-technical reads are done in Kindle, so it takes care of synchronizing bookmarks, highlights and notes. When work permits I can read non-technical stuff in my computer (Ubuntu), I use Kindle Read on the browser. For everything else, I use Calibre and the standard PDF reader that comes out of the box with Ubuntu. I keep notes, highlights and bookmark indications in separate Google Keep notes, one note per title or, sometimes, one note per "subject", which would include various books and articles I'm reading. The method sounds like extra work, and it is, but it's rewarding because Keep is very flexible and easy, its tagging feature and "searchability" work fine.