There are so many bookmark services...Something that I'd like to see is a bookmark based in a goal or objective. Something like, I'm learning Lua and I want to save a bunch of links that I won't need afterwards when my goal was accomplished.
Clipboard is more than just a bookmarking service. You can clip and save individual parts of the web pages including text, pictures, videos, flash applications and even bookmark. You can also create public or private clip collections for interesting topics using hashtags. For example, clipboard.com/tag/jquery lists all public clips tagged as #jquery. clipboard.com/Mati/jquery lists all public clips by user Mati tagged as #jquery.