Write a list of possible reviewers. Find booksellers online, as well as ebook websites and ezine (electronic magazine) websites that carry book reviews and have book reviewers on staff. Research blogs that are specifically about literature or the topic or genre of your book. Spend a day compiling a list of websites that include book reviews and write down possible review candidates. If the reviewer isn't listed on the website, contact the website and ask the reviewer's name so that you can address all of your queries to a specific person.
Write a short synopsis of your book. Give the reviewer an overview of the story without giving away parts of the story that might detract from the reading experience. Tell them what the book is about, who your target audience is and why you wrote it. Many book reviewers have a list of books they will be reading and may pick and choose. Use your synopsis to interest those reviewers in your story.
Write a letter of introduction explaining that you have a new ebook and would like to have it reviewed. Include the publisher (you or the name of your publishing company). Tell where the book will be available for purchase and how much it will cost so their readers will know where to get the book. Ask the reviewer if you may send a free copy of your book for review. Don't forget to ask the reviewer what format the ebook should be sent in and if should be sent as an attachment.
Send your book to any reviewer who contacts you saying he will review your book in the requested format along with a brief thank-you note. For convenience - and to ensure the reviewer has the information to include with the review - repeat listing the publisher, pricing, format and availability information about your book.