GCN One of the best free chat programs we've seen yet, GCN combines many communications tools into one interface. Besides chat, you can use GCN for video conferencing, whiteboards, file transfers, desktop sharing and more. The program also has built-in 128-bit encryption. (For Windows). FreeJavaChat.com Here, you can get a free, customized chat room for your Web site. FreeJavaChat.com offers Java-based chat rooms that include a feature-rich IRC-compliant Web interface. A big plus for this service is that it displays no ads. CyberNet Worlds Immerse yourself in the fascinating world of 3D chat with CyberNet Worlds' free 3D chat browser. Here, you can roam around various colorful 3D landscapes, chatting with users from around the world and build your own virtual home. The CyberNet community also stages social events, parties and contests. (For Windows). Trillian Basic Are you tired of having an instant messaging program that always seems to be incompatible with the ones your fr...