Camino - http://www.caminobrowser.org/
Camino combines the awesome visual and behavioral experience that has been central to the Macintosh philosophy with the powerful web-browsing capabilities of the Gecko rendering engine. - [Read more]

flock - http://www.flock.com/
We believe that it should be easy for everyone to contribute to and participate on the web. To that end, we've started with integrating tools that make it easier to blog, publish your photos and share and discover things that are interesting to you. - [Read more]