They have a very long and extensive list
of volunteer reviewers that you can contact, and some of those will even review electronic copies of your book.
Many of these sites rely
on volunteer reviewers who are allowed to choose the books that appear interesting them to review; the rest of the titles fall by the wayside.
With 800
volunteer reviewers, the latest report from the Intergovernmental Panel on Climate Change (IPCC)-- the international body that assesses the state of the science on climate change — was bound to leak.
For this section you will need to have prepared
your volunteer reviewers (target audience).
When you send
your volunteer reviewers an ARC.
It was particularly memorable for me because attending that same event was my West Coast Editor, Diane Donovan,
a volunteer reviewer with whom I had been working for at least 25 years up to that time — but I had never met her in person!
She started as a one of
our volunteer reviewers, offering her time to help authors as she has done all her adult life.
Sites like IndieView connect authors to
volunteer reviewers on the web.