Lync 2013 for Windows

Lync is a messenger client from Microsoft with which you can hold conversations and videoconferences with multiple members, making it a wonderful tool for virtual meetings.

With this program you'll be able to put your contacts into groups and easily join video calls and conferences. The conversations can also be organized in tabs to keep everything better organized.

The interface is simple, not very different from the other messenger programs like Skype or Messenger. In fact, you can even talk to your Skype contacts through Lync because both applications belong to Microsoft.

In addition, it integrates perfectly with the rest of the Office programs.