Ebooks offer several ways to make money.  Most of them, if followed properly, will help you to create one or more revenue streams.

Ebooks also offer help with home projects, family life, sports, entertainment, social situations, health, and employment/jobs.

You may also choose to sell ebooks.  Clickbank is an excellent sponsor for selling ebooks.  The payout is very good for a mainstream sponsor; and they have over 10,000  products available for immediate download.

You might even decide to write and sell your own ebooks.  Again, I can recommend Clickbank.  Their large number of affiliates means a huge marketplace with lots of exposure.