EBook designed as structured HyperText to make it easy to read at varying levels of detail. You start with a summary (Thin Book?), read a bit more from the chapters that sound promising, jump into a section that has a good case study, jump over to a related section referenced in the study, etc.

HyperScope could probably do some of this. But a human editor would have to do most of it (meaning write summary hooks differently than they would be written for linear print).

Would a WikiBook work? Or a WikiEbook?

Is marrying it to Social Software part of this? Or related-but-different?

Annotation Systems for it?

Virtual Community around it?

How integrate with other books/communities?

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