I have a LibraryThing account but I prefer using Goodreads because you can only add so many books before you have to pay to add more.  You will be able to keep track of books like you want there because you can create different shelves to put the books on but in my opinion it is less user friendly than GR.  I consider myself pretty ok at figuring out websites and that one has confused me more than once.

I'm with Holly. I have a LT account, but when I hit the maximum book amount I bailed. Besides, there just is no interaction with other members like I get at GR. Open up my main GR page and there's all kinds of stuff going on. Jerelyn is reading this, Holly shelved that, etc. Commenting is easy. I love the status updates so I can mark where I'm at in a book and make a note and/or quote. GR is fun. LT is just a place to catalog books.

Oh, hey, I missed that press release! When did AZN purchase GR?

Just my 2 cents, but I'd be more worried if a company, such as Google purchased GR. AZN often improves its acquisitions; e.g., Audible.

I'm a lifetime member of LT and I think it's easily worth the very low cost IF you want to do more cataloguing of your books. GR is a quick-and-dirty catalog, which is why many people, including me, prefer it. It's very easy to add and delete from your collections.

LT requires a little more work, but you can do more with it. So I think it depends on what you want to accomplish.

I also like the challenge counters on GR that you can use to track how many books/pages you read in a year. Cool option.

ETA: I forgot to mention that AZN has a 40 % stake in LT through its acquisition of Abebooks, so it may be 6-to-one or half-dozen-the-other.

I've used FictFact. Its enough for me, just some basics with no bells & whistles.    

http://www.fictfact.com/index.aspx

-RD

I'm not going to worry too much about the AZN acquisition of GR just yet.  I think it's possible that some features may be enhanced.  There's lots of discussion of this over on GR in various groups.  But, it's nice to hear about these other options, which are new to me.

I'm also a lifetime member of LT, and I enjoy it.  You can set your own price for a membership, so you can increase your maximum library size for a very nominal cost.

You can create all sorts of categories in your library, so you can tag ones as "TBR", "ereader", "borrowed from XYZ", or anything you like.

I used to be on GoodReads too, but I left after a harassment issue for which I was unable to get any assistance from GR staff.  I've found the LT folks to be very responsive the few times I've contacted them.

I'm not super excited about GR being purchased by Amazon, but I like their interface, the friends I have there, and I am used to tracking there (and I like their app) so I'm staying for the foreseeable future.