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Get flash to fully experience Pearltrees
http://www.commentful.com/ Commentful is a service that watches comments/follow-ups on Blog posts, Digg submissions, Flickr pictures, and many other types of content. When ever there is an update, such as a new follow-up or comment, Commentful notifies you instantly.

Easily keep track of blog comments and followups with Commentful

Firefox

Flash

For details, see the announcement . There will be no further updates or security fixes to Google Toolbar for Firefox. For this reason we strongly recommend discontinuing the use of the toolbar.

Toolbar

http://www.google.com/toolbar/ff/index.html