Registered user now see an active users right slot with a mail icon at the left side of their name. When clicking on it an Instant Message can be send.
Also IM are send using messages slot Usage

• when clicking on New Message in your Message Slot you get the MessageSend form
• you can fill in the recipients user name, subject and body
• additionally you can check the ' Attach URL of current location

  when this one is checked the message contains a URL of the location you are currently browsing, thats cool if you want to point another portal member to an interesting location inside the portal

• the recipient sees the messages in his messages slot he can:
  • acknowledge

    the message remains in his .personal/messages folder but is no more displayed in the slot

  • remove

    the message is really removed

  • answer

    the message gets acknowledged and you are redirected to a pefilled reply form