There seems to be absolutely no way to contact the people (/person) behind Zooomr to tell them about a bug in their Beta software, and I’m not about to leave a comment on some random post in their blog.
On the slight offchance this makes its way to them, the message is a simple bug report:
Hello,
Your ‘Add to Google’ link at the bottom of my user page is broken. The link points to :
http://fusion.google.com/add?feedurl=${root_url}bluenote/feeds:rss/people/${user_rs.unix_name}