JumpKnowledge - web-based capture & annotation (Score 1)

You can use JumpKnowledge located at http://jkn.com/ to capture and annotate any web page. It is the perfect tool for research, online collaboration, and for quickly emailing a web page to your colleague with your comments inside.

In a nutshell:

• JKN is free, web-based, cross-browser, and registration-optional.
• JKN supports frame-sets, secure web pages (https), and multi-web pages.
• With the optional FireFox add-on, you can annotate password-protected web pages.
• The resulting Annotation can be emailed, blogged, saved, bookmarked (including delicious) and printed.
• Annotations can be saved as public or private.

Here is an annotation example of this very discussion with my (somewhat) insightful comments:

http://jkn.com/View?j=814255.882997363546&t=03/

Full disclosure: I am the founder and chief rabble-rouser for JKN.