Hello, We think bookmark is not only a bookmark, but something we want to keep it to get back later. It could be a link, a hight light text, a note, a todo etc... , sometime a bookmark relates to a document (a file) or a people. At the end of the day we have a lot of things to keep but easily to forget. That the reason we think bookmark with #hashtag is the best way to mark some important keyword we could get back later easily. Beyond a bookmark is could be a thinking we want to keep, that 's why many people like to use private facebook post as bookmark. We did try to build a simple MVP of this idea at https://www.kocpit.com - bookmark management with #hashtag , with full text search support. Bookmark an URL , a file, a content, markdown, note etc by your way. Try it free.