I've just started a new book review blog on WordPress.
The thing is, after I review books I already have (or mix things up and start new books I'm interested in), I don't actually have any of the books I'm planning on reading, like a bunch of sequels. I know, I know... "Why not go to the library and check them out?"
Unfortunately, because of my current family circumstances right now, I can't get out to the library as much as I'd like, using the loan renewal system that my local libraries have won't always work out. Also, I don't have an ereader, and any ereader apps I could download to my computer don't display well enough for me to read comfortably.
So, for me, the best way I can get the books needed for my book blog is to order them on a secondhand books website and have them sitting in my room until I know for sure what my schedule for the blog is and what order to read everything.