Diigo has also improved its already-excellent Chrome extension. Seriously, this is one of the most useful extensions out there. Here are some of its features:
Save a webpage to Diigo,
Annotate a page,
Save the page to read later (I prefer Pocket),
Take a screenshot (genius),
Share the page via Twitter, Facebook, Google+, Gmail, or an annotated link.
I can’t say enough good things about the extension. No other service allows you to annotate the Internet as smoothly as Diigo does. Once you start highlighting or taking notes, up comes the “Annotation Toolbar,” which lets you change the highlight color and write a sticky note. Or you can reorganize the clip by changing the title, adding tags, and sharing to a list or a group.