Envolve is a chat toolbar, that looks like Facebook's chat, for your Drupal site.Features
- Group chats that anyone can join
- Private one-on-one chats
- Real-time translation in 60+ languages
- Take chats with you anywhere, just like Facebook chat
- Seamlessly integrate with your Drupal usernames and picture
- Up to 25 simultaneous chatters are free. Envolve is a paid service after that. See pricing here.