I use the DT internal browser more and more. It is so handy while exploring a website full or resources etc.
I have found myself wondering many times “why ca’t I highlight this HTML doc / this PDF?” only to discover that it was only a bookmark or a web page / online PDF I opened while browsing.
It would be a true asset of DT to let us “highlight any online doc” and when we do a first highlight then it asks us if and how we want to capture it. That would keep us in the flow of exploration mode.