Stuart,
Is eBook the right word for it? I would describe an eBook as a book in electronic form which is compatible across multiple platform and devices. Although, I guess BBC BASIC is portable-ish ...
How exactly are you implementing it? Are you just writing BASIC programs which display text to the screen? So basically something like:
Code:
10 PRINT"Aerworuld I"
20 PRINT'"It was a dark and stormy night ..."
30 PRINT'"Rest of page ..."
40 REPEAT:UNTIL GET A$
...
Or is it more complicated than that?
Also, is it in way interactive (e.g. Choose Your Own Adventure style) or is it straight prose?
I think some screenshots would definitely help.

I'm sure we can host it, I'm just trying to work out how to pitch it!
Sam.