【正确答案】正确答案： Social Networking Social networking and blogs have now become more popular than sending personal emails. / The idea behind these sites is that of global online communities. / To join a community you need to create a personal profile. / Then you can connect with your friends, / share pictures, music and your thoughts. /Social networks are not new but they are evolving. / Almost all the networks can now be accessed from a mobile phone. / Sites seem popular with a broad audience largely thanks to bolt-on applications / which allow everything from photo-sharing to online gaming. /