I think it would be fun to run into more familiar faces on those sites, so if anyone wants to share their links to any of those sites, just drop them into a comment to this post. I don't use any of the other popular book promotion tools such as those offered on BookTok, Instagram, or YouTube, but if you use them, include those user links in your comment, too.
I'll start us off with links to the sites I post to:
The first site that I ever reviewed a book on was Amazon, but I don't share reviews there much anymore because I think it's the least trustworthy of all sites when it comes to review authenticity. My go-to site for years (other than Book Chase, of course) was LibraryThing, but that site has been struggling for a while now, and I got out of the habit of posting reviews there on a regular basis. I haven't given up on them, but it's gotten kind of quiet there.
Then I discovered Twitter and used it as a place to post book review links back to the blog, and as a way to meet new bookish people. I suppose GoodReads is the place to be now, but that site seems really slow lately. I think that may be a function of GoodReads becoming the dominant book review site on the internet and the massive number of active members that results from that level of success...but it's frustrating.
Anyway, please do post your own links in the comments below because otherwise finding someone on any of the sites is kind of a looking-for-the-needle-in-a-haystack experience.