Facebook F8 add a “Like” button to any piece of content on a website by the owner. This feature is now integrated within around 2.5 million websites worldwide, with 10,000 more being added daily. Additional news and announcements included: F8 2011 was held on September 22, 2011. Various things Facebook introduced at the conference included a new profile redesign named 'Timeline' that showed a history of user's activity on their profile, and a broader, more advanced version of the 'Open Graph' protocol. The F8 2011 event was mainly focused on introducing new products, transforming industries, building and growing social applications and product
F8 (classification) arm tends to be near horizontal at the moment of release of the discus. F5 and F8 discus throwers have less average angular forearm speed than F2 and F4 throwers. F2 and F4 speed is caused by use of the elbow flexion to compensate for the shoulder flexion advantage of F5 to F8 throwers. A study of javelin throwers in 2003 found that F8 throwers have angular speeds of the shoulder girdle similar to that of F3, F4, F5, F6, F7 and F9 throwers. Two other sports people in this class participate in are wheelchair basketball and swimming. In the