I've tried several bookmarking tools but found https://start.me to be the most effective in turns of organizing my bookmarks in a way that I can easily find them. start.me has a great visual interface and comes with a lot of useful additional features (e.g. embedding web pages, RSS feeds, note-taking).

If you only need basic note-taking features, but want powerful bookmarking, news feed and web-clipping features, https://start.me might be a good solution for you.