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The forum (or conference) is an asynchronous communications tool, which is used to delve deeper into a course subject. To ensure the conference reaches its objective, the coordination of learners’ activities must be supported. One difficulty that mediators and learners face to coordinate themselves is that the moment for the sending of messages is unpredictable and varies considerably. This requires frequent action of mediators to check up on how the discussion is going and intervene when necessary. Learners also need to follow up the conference frequently to self regulate their activities. In a scenario in which mobile devices and wireless networks are bringing a new range of possibilities for teaching and learning, this study aims at investigating coordination tools for educational forums that explores resources of these new technologies. Case studies are being carried out with participants of the Information Technology Applied to Education Course. This course, regularly offered by the Computer Science Department of the Catholic University at Rio de Janeiro, is given totally at distance through the AulaNet, a web-based teaching and learning environment developed since 1997 at this university. This study presents the extension of the AulaNet Conference service to PDAs (Personal Digital Assistant) and the use of coordination tools in PDAs and cell phones. The first results show that visual information about the conference tree structure coupled with wider connectivity of PDAs is a valuable coordination tool. The offering of alerts and statistical information through cell phone text messages (SMS) and PDAs are under investigation now.