1)   Desktop Forum Manager 2.0
Desktop Forum Manager will help you join and participate in an unlimited number of forums and message boards. Joining forums is a great way to gain credibility as an expert in your field and generate tons of incoming one way links to your website.

 2)   GCN 2.9.1
GCN is the ultimate communication tool - it's free, with high quality video, voice, chat, games, media player, built in browser, message boards, integration with other messaging services, whiteboard, language translator, file transfer and much more!