Me.dium
Me.dium reveals the hidden world of people and activity behind your Flock browser. With Me.dium you and your friends can see each other moving around the internet. You can surf the web together, for the first time, in real-time.
You can also meet new people interested in the same stuff as you - even ask them questions and start discussions. And you'll discover new websites based on the activity of other Me.dium users with the same interests as you.
Screenshot
Based on the excellent Firefox Screengrab from Andy Mutton, this Flock extension allows you to save webpages (entire, visible portion, selection) as png or jpg images. You can save these images to your file system, the clipboard or even send them straight to the photo uploader.
Unlike some, this extension does NOT require Java (JRE) for saving webpage screenshots. However, JRE is needed to capture entire windows or flash heavy sites - get the free Java Runtime Environment from here (scroll down) and read the Java vs Canvas page.