Free
Express Talk
Express Talk: Virtual telephone compatible with most VOIP services
Free
Express Talk: Virtual telephone compatible with most VOIP services
Paid
A great alternative Twitter app for OS X
Free
Full featured IM client for internal communication
Free
ooVoo: Free Multiple Video Chat Client
Trial version
Social Network Browser: Spyder Review
Trial version
Snak: An IRC Client for Professionals
Free
Scalaris: An Elegant and Discreet Twitter Client with Growl Support
Free
Use Skype remotely
Trial version
iSpQ VideoChat: Meet Other Video Chat Users from Around the World
Free
Sync Adium and Address Book
Free
Jitsi: Free Messenger Client Supporting Audio and Video Chats
Free
net4mac: Social Networking for Mac Users
Free
Mac Messenger: Open Source MSN Messenger Client for Mac
Trial version
Easy local network communication
Free
56 Free Effects for iChat
Free
New Emoticons for MSN Messenger
Paid
FaceTime: Video Chat Done the Apple Way
Paid
Tweetbot for Twitter: A Full Version Program for Mac
Free
An alternative to Skype
Trial version
Video effects within iChat
Free
goober Messenger: Multi-functional messenger with TV, radio and more
Free
Night Owl: A Free Social & Messaging Program for Mac
Free
A free program for Mac, by Vail Systems Inc..
Free
Social Lite: A Free Program for Mac