Huddle, Meebo, Yammer, and other online services can help you collaborate with colleagues and get in touch with partners and clients.
Merge multiple instant messengers into a single, open-source app with Miranda IM.
There are at least two plausible arguments against video calling in the air: bandwidth and seatmates.
Multi-service communications program Trillian Astra has many features, but takes some sharing a little too far.
Here are four instant messaging apps that will let you chat with your IM buddies and social network contacts.
Want to keep your Facebook chats going even while you're looking at other sites? Here's how.