ICQ

ICQ could be the one program that started our need for direct communication in real time. Its complexity made it eventually lose its position at first place, but after that the program was renovated in terms of its interface and usability, coming back highly ranked recently.

Even though this type of service has lost part of the market because of new social networks like Facebook, Twitter, and Tuenti, it is still used by millions of users worldwide.

ICQ lets you send SMS, chat with your friends, start pretty good quality voice conversations, videoconferences, and meet people with your same interests from all over the world.

Without any doubt, it's a great real time instant messaging program, now with interesting features and adapted to the new times.