Mark,

I think you're missing the bigger concept:

FIND OUT WHAT THEY WANT.

The sub-issue that you should be very concerned about also is:

FIND OUT HOW TO REACH THEM... LOTS OF THEM... CHEAPLY.

Usually these two issues will be related.

For example, I like to go to places where people are asking questions... and see if I can find patterns. Like the same type of questions being asked. You can find these in Letters to the Editor, Discussion Forums, Chat rooms (or chat room transcripts), Columns, etc...

For your project, I would specifically look for many people asking the same question about, "How do I go about writing an e-book?"

Good luck,
Adam.


Some of the projects I've developed...