The report divides into four sections:

1. Event Coordination. When we schedule meetings we eventually agree on a time, a place, and a group of participants. But the protocol isn't just about synchronizing calendars. It also involves discussion and negotiation. Web-based services can help us manage both the structured and semi-structured aspects of event coordination.

2. Group Discussion. Mailing lists, the dominant mode of group messaging, are problematic. Fortunately there are a variety of alternatives that can make shared discussion spaces easier to create, and more effective to use.

3. Broadcasting and Monitoring News. The physics e-print archive at www.arxiv.org has transformed the way scientists publicize their own work, and monitor the work of colleagues. A new standard for content syndication on the web can generalize and extend this process.

4. Scientific Publishing. TeX and LaTeX define scientific publishing for a generation of scientists. But these formats don't integrate directly into the shared spaces of the Web. The rise of XML as a universal markup language, along with vocabularies such as MathML (for mathematical notation) and SVG (for scalable vector graphics), suggests that the Web may yet reach its original collaborative goal.