From Brian Dunning:
You asked for it, you got it. FileMaker Instant Messaging - now with audio and visual alerts of incoming messages.
Announcing The BoardRoom for FileMaker 7. This new version lets you communicate instantly with your coworkers without leaving FileMaker Pro, and without installing any additional software.
The BoardRoom is a FileMaker Pro 7 solution which provides an instant messaging environment, with up to 250 users online simultaneously. The BoardRoom provides audio and visual notification of incoming messages and a familiar graphical chat environment. Developer and API versions give you the freedom to integrate The BoardRoom into your existing solutions.