Recommended book promotion services?

[Lysmata Debelius]

Could we have a sticky here with a list of recommended sites for book promotions? When I google for this I see all kinds of services recommended, some that I am pretty sure are dodgy.

The recommended ones I'm aware of are Bookbub, Robin Reads, and Ereader News Today.

Any others worth using?

[Michelle Louring]

Seeing as this question comes up again and again, I think a list would be a great idea 
Not that I'm much help, since it's been forever since I have promoted my books.

[Lysmata Debelius]

If somebody could set the ball rolling and creates the post, we can request that Tim stickies it.

[Ghost5]

I always recommend Nicholas Erik's site. He keeps it updated and I've found that it agrees with my own findings and experiments even though we write in different genres. It's a great place to start, in my opinion.
Here's the link:

http://nicholaserik.com/promo-sites/

[guest215]

I don't mind starting a thread and asking Timothy to sticky it.

[Lysmata Debelius]

I don't mind starting a thread and asking Timothy to sticky it.

That would be awesome.

[guest215]

Here's the link to it. Don't know if the link changes when it gets stickied, though. https://writersanctum.com/index.php?topic=1077.msg17446#msg17446