It's really too bad Google doesn't allow you to simply blacklist domains from your search results permanently. The thing that frustrates me the most about these SPAM sites is the fact they're constantly popping up and my down voting of the result seems to do absolutely nothing unless I'm using the exact same search query. Just let me blacklist Mahalo and other sites like it permanently. Better yet make it possible to subscribe to a blocklist so the community can pool it's resources and fight back.