that for video advertisements on Facebook, over 40% of users who viewed the videos viewed the entire video, while the industry average was 25% for inve sizable
re only seen by users that are in the same network as that user, whereas listings posted on Craigslist can be seen by anyone.[98]
On July 20, 2008, Facebook introduced "Facebook Beta", a significant redesign of its user interface on selected networks. The Mini-Feed and Wall were consolidated, profiles were separated into tabbed sections, and an effort was made to create a "cleaner" look.[99] After initially giving users a choice to switch, Facebook began migrating all users to the new version beginning in September 2008.[100] On December 11, 2008, it was announced that Facebook was testing a simpler signup process.[101]
On June 13, 2009, Facebook introduced a "Usernames" feature, whereby pages can be linked with simpler URLs such as
http://www.facebook.com/facebook as opposed to
http://www.facebook.com/profile.php?id=20531316728.[102] Many new smartphones offer access to the Facebook services either through their web-browsers or applications. An official Facebook application is available for the iPhone OS, the Android OS, and the WebOS. Nokia and Research In Motion both provide Facebook applications for their own mobile devices. More than 150 million active users access Facebook through mobile devices across 200 mobil