• Opera moves to WebKit http://my.opera.com/haavard/blog/2013/02/13/webkit 282 comments 13/2/2013
• 300 million users strong, Opera moves to WebKit http://my.opera.com/haavard/blog/2013/02/13/webkit 50 comments 13/2/2013

• Opera is moving to WebKit http://my.opera.com/odin/blog/300-million-users-and-move-to-webkit 544 comments 13/2/2013 programming
• Thoughts on the effects of Opera's move to WebKit? http://my.opera.com/haavard/blog/2013/02/13/webkit 15 comments 13/2/2013 firefox
• 300 million users strong, Opera moves to WebKit http://my.opera.com/haavard/blog/2013/02/13/webkit 4 comments 13/2/2013 webdev