Links
Retrievr - http://labs.systemone.at/retrievr/
?Viper?
like - http://like.com
istockphoto - http://www.istockphoto.com/index.php
MeNoSpeak Travel guides http://www.menospeak.com
google image labeler - http://images.google.com/imagelabeler/
imageWiki - http://imagewiki.org
evernote - http://evernote.com/
SIFT algorithm