I use Librarything to catalogue my books online. It has a bit of a learning curve and is not as easy to use [imo] as GR or Booklikes. But, they leave you alone and the site works. I can’t ask for much more than that.
I can be found Here, Bookstooge at LT, and I am part of the Green Dragon group. I prefer blogging and the commenting format here at WP, but I’ve learned to never tie myself down exclusively to one book reviewing format. That’s just asking for trouble.