Firefly

The service lets everyone see each other's cursors live as they zip around the page and lets them chat with one another via text. To strike up conversation, just start typing and a chat bubble will form above your cursor. Everyone's public chats are stored in a little queue, and frequent users can register to have their information and chat history saved to view at a later date. One of the service's greatest assets is that it's highly engaging when you've got a good small crowd together.