Peter Wayner has a story at InfoWorld about ten specialty browsers.
http://infoworld.com/d/applications/top-10-specialty-web-browsers-you-may-have-missed-026

+ Kirix Strata http://www.kirix.com/
+ Flock http://flock.com/
+ Dillo http://www.dillo.org/
+ Lynx http://lynx.isc.org/
+ SpaceTime http://www.spacetime.com/home.php
+ Gollum http://gollum.easycp.de/en/
+ Songbird http://getsongbird.com/

+ Cruz http://cruzapp.com/
+ Fake http://fakeapp.com/
+ Fluid http://fluidapp.com/

There are also some links to browser security.
"The InfoWorld expert guide to Web browser security"
http://www.infoworld.com/d/security-central/the-infoworld-expert-guide-web-browser-security-892
"Web Browser Security Deep Dive"
http://www.infoworld.com/t/endpoint-security/download-the-web-browser-security-deep-dive-report-499