Campfire, the web-based group chat once [Google App Engine]-sample ap(p)ed by R.I.P HuddleChat[*] has a new enhancement: online conversion of YouTube posted urls to pictorial links with still picture-frame from said videos. Now, why isn't that an optionally default behavior of Reader, if not all things Googley?
http://www.37signals.com/svn/images/youtube_in_CF.png
http://37signals.blogs.com/products/2008/06/youtube-clips-i.html#entry-51463956

[*] http://blogoscoped.com/search/?q=HuddleChat+ianf

(heading – thanks to Raymond Carver)