PLEASE. Do everyone a favor and write an Amazon review if you end up reading a book (or trying to and giving up in disgust). It does not have to be much. Just tell what you think of the book. By the way, many times I have found the 1 and 2 star reviews on self published works to be far more revealing about the book than the more stellar reviews.
Most times these books are only free for a day or two, so you have to grab them while you can. Worry about whether you really want to read it later if it seems interesting. And be careful, they can change from free to not free at any time. I have also decided to list books for no more than 3 days in a row to avoid cluttering up the posts, unless there is some reason I think the book deserves extra attention.
From the top 100 free list
As is typical, there are several religious and recipe books on the list today. I don't call them out because they don't interest me. Click on the link above and search through the Free List Tab if you are interested in such books.
A Little Bit of Everything For Dummies
[#39. 3rd day. I have several of the books in the Dummies series. They tend to be pretty good, and very helpful in getting started in a particular area. This appears to be a slice of what is to be found in the series. I don't think it is great literature or anything, but it is one of the great success stories in modern publishing.]
[#59. 3rd day. I have read this one before. It is pretty good. I think I bought it from the Baen website a long while back. It seems to be a free book now. Drake is a good author, one of my favorites. This is a little off from his best works which IMO are military SF, but still a decent story.]