There are several things that you can say about how the Internet helps with communication and for this reason helps with the social lives of many people.
First, distance is a real factor when it comes to communication. With the Internet, people can communicate with ease. Moreover, this brings people from all over the world together. Programs like Skype and google chat even allow people to engage in video conferences.
Second, the Internet makes communication affordable. To call someone on the phone might still be too expensive for many people, especially if you wanted to talk to a person for a long time. However, with the Internet, communication is now free. This is a huge benefit for many people.