This widget used to be in the right sidebar. I removed it on June 21st, 2012, because Echo is being decommissioned, the "recent comments" in the widget are no longer recent, and the Echo comments will ultimately be imported into DISQUS.
Recent Echo comments
New Echo comments aren't being accepted anymore and Echo will disappear on October 1st. Use DISQUS instead – where old Echo comments will be imported.
Sorry for the wrong spacing. It looked correct in the sidebar.