
Hub (beta) is a messaging app that allows you to send real text messages and have group conversations over sms for free. There are no text messaging fees- messages are sent over WIFI or using your data connection and doesn’t matter what phones your friends have.

Instantbird is a customizable instant messaging client with support for AOL, Yahoo, MSN, Google Talk, Twitter, Facebook, XMPP, IRC and ICQ. It’s powered by Mozilla so it has support for customization using themes and extensions built-in. It doesn’t support audio or video chatting.

Way2SMS.com provides Future SMS facility to strengthen the relationship between you and your friends in a special manner. With this feature, you can schedule messages to be delivered on a particular date and time to your dearest ones. You can also schedule messages, notes or other information to be delivered to yourself as reminders.
Wadja.com, a unique social networking site that uses labels to create people-to-topic connections, has introduced an exciting new communications platform, which enables users to send unlimited group messages as well as allowing users to remotely update their online feeds.