Your DH can sign you in as a guest and you can chat through the AF portal site. We are in the process of doing this so I thought I would pass on the info. The other services might have a similar feature, so you might want to check into it. I thought this would be great because he can chat with me while he's at work (since Yahoo and other messenging sites don't work on govt computers) and there is nothing to download.
USAF Instant Messenger (AFIM)- Can be accessed through the Air Force Portal (
https://www.my.af.mil)
- Enables real-time comm with other AF Portal users to include family
members
- Alerts users when their contacts are on line; allows them to
communicate through private online chat areas
- Enables one-to-one and one-to-many communication
- Major advantage over other instant messengers: Requires no software
to
install, and all settings are stored on the server, making it the
easiest Instant Messenger solution for users who move often between
computers