Instant Messaging
Line is a free messaging and calling app similar to Skype.
Snap Camera lets you use Snapchat filters on different platforms.
Camfrog videoconferencing system with 4,000 chat rooms, create your own.
Desktop client for Facebook chat, access features and notifications easily.
Palringo: multiplatform IM client, low resource, organized interface, all networks.
AOL launches AIM for Mac with traditional features and interface.
Coccinella is an IM client with voice chat and whiteboard.
Adium simplifies access to various messaging services with encryption and customization.
Microsoft Messenger for Mac merges Hotmail and Yahoo contacts seamlessly.
Chax improves iChat with unified contacts, notifications, and file transfers.
Nimbuzz: chat with friends, join chat rooms, make calls free.
Mozilla partners with Instantbird for multiprotocol messaging client access.