Many people have given up using bookmarks in favour of services like Pocket or Readability. If you still have way more bookmarks than you know what to do with (like I do), Unmark helps you organise them, access them anywhere, and even follow up, reading articles and visiting sites you meant to try later.
Unmark lets you add bookmarks easily using the browser bookmarklet or by using the Unmark Chrome Extension. As you add bookmarks, file them into the categories provided, like "to do", "read", "buy", "watch" and "listen". The goal is to help you actually work with your bookmarks, not just hoard them for later -- so you can click the "read" category, and see all of the articles you've saved for future reading, or the "watch" category for any videos you've saved. When you do read that article or watch that video, you "archive" the bookmark, checking it off your list and boosting your total for the day. You can read more about this approach in their overview and FAQ.
Unmark is free, but you can only save a 10 bookmarks per day and keep a total of 50 bookmarks with a free account. $US12/year gets you unlimited bookmarks. Alternatively, you can download Unmark at GitHub (it's free and open source!) and host it yourself to get all of its features for nothing.