Read the text below entitled “A world of connections” at to answer ...

To sceptics all this talk of twittering, yammering and chattering smacks of another internet bubble in the making. They argue that even a huge social network such as Facebook will struggle to make money because fickle networkers will not stay in one place for long, pointing to the example of MySpace, which was once all the rage but has now become a shadow of its former self. Last year the site, which is owned by News Corp, installed a new boss and fi red 45% of its staff as part of a plan to revive its fortunes.

Within companies there is plenty of doubt about the benefits of online social networking in the office. A survey of 1,400 chief information officers conducted last year by Robert Half Technology, a recruitment firm, found that only one-tenth of them gave employees full access to such networks during the day, and that many were blocking Facebook and Twitter altogether. The executives’ biggest concern was that social networking would lead to social notworking, with employees using the sites to chat with friends instead of doing their jobs. Some bosses also fretted that the sites would be used to leak sensitive corporate information.

According to paragraph 2, the benefits of online social networking in the office are