I wanted to take the time to review a great site for all you ebook readers out there: BookBub. (Note: even if you don’t own an e-reader, almost all ebook publishers out there offer free apps that allow you to read their books on your phone, tablet, or laptop.)

So, what is BookBub? It’s a free site that helps you find either free or deeply discounted ebooks on sale across the web. After you sign up with your email address, you select the genres of books you’re interested in to customize your preferences. I believe you can further refine your interests by rating books on the site. Then every day BookBub sends you an email with a list of ebooks currently on sale that match your preferences.

The pros: Ebook sellers like Amazon are constantly discounting ebooks and sometimes giving them away for free, but there are so many listings it would be impossible to search through them all yourself. I like that BookBub sends a of list of options alerting me to deals I would otherwise miss; I’ve found at least one favorite new author by picking up a Kindle freebie. I can refine my search options so I’m not getting bombarded by emails about books on sale that I don’t care about. Another benefit is BookBub links to sales across pretty much all ebook platforms, not just Amazon.

What’s not so great: BookBub is only for ebooks, so if you want to know when a regular book is on sale you’re out of luck. Sometimes their offerings can be a bit…lackluster. In general, don’t expect to see any bestsellers on the deep discount list. And, for example, I said I was interested in historical fiction and the number of emails I get with books about mail-order cowboy brides is ridiculous.

The verdict: Given that it costs you nothing to sign up and you can unsubscribe at any time, I’d say definitely give it a try. Just be prepared to have to read a lot of emails before you find a book you love.