Want to stay in touch with your friends on multiple social networks? Try Zup, a new web based messaging service that will make it easier for you to stay in touch with friends on different social networks via messages. Presently it supports Facebook, Orkut, MySpace and Hi5 and you can use this cool service to send and receive messages on these networks.

Zup is very easy to use. In order to start using Zup, you need to add it to your favorite social network. You can do it from the home page of Zup by selecting the specific social network(s). After installation of the application, you can start adding friends. If your friends are already using Zup, you can simply send a friend request to them. Once they accept you as a friend you’ll be able to Send messages to them. You can also invite your friends to join you on Zup.

Users of Zup can access their messages and friends from any of the supported social network by logging in with their special 5-digit Zup Key. If you have multiple Zup accounts, you can even merge them into one single account.

So, Zup is a handy application to stay connected with your friends. It is helpful for you, specially when you use multiple social networks like Facebook, Orkut or MySpace. Soon they will support more social networks. Till then, why don’t you try with the existing ones?