I prefer this
ereaderiq site, because it shows Amazon customer review ratings and book genre, and seems to have more books (too many for this lifetime).
Having said that, beware the fake Amazon customer reviews on books found on that site. There's a lot of them, even for books with as many as 25 reviews. (I've gotten to the point where I can just glance at a page of Amazon customer reviews and recognize possible salted reviews, recognizing the pattern of their form. Subsequently scanning the titles and a sample of sentences and I'm about 95% sure.)
That's why
koland's site is still my go-to site for free ebooks. Not nearly as many ebook offers, but she filters them manually. I don't recall ever seeing a free ebook on there that had what looked like fake reviews. Also you get more than just Kindle free ebooks: Kobo, Nook, DRM-free, audiobooks, free MP3s, and bargain-priced offers, but smartly giving the main link to Amazon, so we can read customer reviews. Plus a good writeup for each, sometimes with her own personal comments. A quality site.
P.S. I had a tough time deciphering "NSFW". I saw the NFW and knew what that was, so then only pondered the "S".