Get it propagated around the Web via the free online distribution channels. Make sure it has a link back to your site. Keywords. Things like that — so you get some juice from the effort. Lots of press releases are written for the Web, not journalists. But journalists pick them up, too. This is good. Lots of bang for the buck on a good e-book press release.
Also, it goes into your author press kit and online on your media page as a link to one of the best places that it was published. More bang.
Definitely Worthwhile. A press release should take just an hour or under to write and it is one of the underpinnings to the press you get online. It can also be used when you connect with a blog, say you’re going to do a guest blog and you want to send them something professional about you and/or your book.
A press release makes you look more professional, also makes you more professional as you are paying attention to the other side of being an author – the public side / marketing side. This can be overlooked only at your peril. It is why publishers look for that section in your proposal that says what you can and will do to market your book, should they decide to publish it.
People are finding books in lots of new ways, and the world of books seems chaotic, but some things have not changed. One is that a simple press release, used well, increases your presence on the Web and makes it easier for readers to find your book.
Write it once. Use it 100 times. That’s the value of a press release.
Thanks for the question. — You inspired me to put thoughts on paper. As always, hoping that’s helpful.