These days I use Goodreads regularly and not any of the others. I don't want to catalogue my books at home. The non-fiction is arranged in broad DDC categories and the fiction is in a bit of a jumble but all in the one bookshelf and it needs weeding. Most of my new purchases are ebooks and I can search for them in their apps.
What I want a reading tool for is primarily to monitor my own reading and to have social interactions with followers and authors. So I decided a few years ago that Goodreads was the one I wanted to use. I have nearly 300 friends from a range of backgrounds and covering most elements of my life. I can't ever keep up with what they are reading but I like to see their opinions about new books getting added to my to-read shelf. We don't always agree but that doesn't matter.
I mostly use the Goodreads app on my iPhone and have it linked to report to other social media about my reading progress. I usually find the books I am reading on there but have occasionally had to catalogue a title not already present. However, some times I just don't bother recording those titles.
I set an annual target for my reading on Goodreads but I keep it very modestly at 52. I know people who read 365 a year but I am not really interested in doing that. I just really want to keep a record of my reading as proof to me that I really still do it.
And therein lies a problem. I really like re-reading books. But if I re-read books the re-reads are not counted towards my annual target as the books still have their original completion date. I have got around this in previous years by adding shelves called "read-2012" etc. Or at least I had thought I had. However, this year I have had a real difficulty.
These calculations are not beyond me, but I really do wish that computers could do the stats for me. It also really under-estimates the number of books read in Goodreads annual targets IMO. Or maybe others don't re-read books? Do you re-read? In total, I read (including re-reads) at least 106 books last year. I say at least as I think here were some others that weren't on file. I am very happy with that as I had set a target of 52 books, the same as I have now set for 2014.
Goodreads with its iphone app is a tool that I use practically daily and a great example of a mobile tool. You can check out my Goodreads profile here. Please feel free to add me as your friend. I am always happy to have more.