Продолжая читать Forrester - Enterprise Instant Messaging

Forrester Research выпустил еще одно интересное исследование - The Forrester Wave: Enterprise Instant Messaging, Q4 2007.

Как обычно для начала Summary:

Forrester evaluated four leading enterprise instant messaging (IM) products across 69 criteria and found that IBM and Microsoft established themselves as Leaders thanks to their overall functionality and robust integration with key technology partners. Jabber proved to be a Leader based on its ability to scale up in very large implementations and strong capabilities in persistent chat, but it lacks extensive integration with business applications, telephony infrastructure, and teleconferencing and videoconferencing offerings. Jive Software came in as a Contender based on its open source support and vision for integration into a larger collaboration offering.

И чуть подробнее про MS:

In the fall of 2007, Microsoft released Office Communication Server (OCS) as a major upgrade to its existing Live Communication Server offering. New to OCS are on-premise Web conferencing, videoconferencing, improved presence capabilities, and a host of partnerships to extend the value of the underlying platform. With excellent integration into Office 2007 and SharePoint and a strong unified communications strategy, the value of OCS extends well beyond basic chat.  

Сейчас сам активно пользуюсь OCS. Дико удобно :) Особенно когда сделана вся необходимая интеграция.

За подробностями заходите вот сюда - Объединенные коммуникации и на английском.