In posts to come, I will write about books that are currently on my mind and my reading list. But first: a bit about the process of discussing books on the web.
Over the last couple of years, I've used various websites that let you record books that you own or read and what you think of those books: LibraryThing, goodreads, Visual Bookshelf (a Facebook application), and Shelfari This selection of sites doesn't even include my Amazon wishlist ("Stuff I find interesting"), a WorldCat "Stuff I find interesting" list, my Google Books "My Library", and other lists I must have forgotten about. Some of these lists I use actively, while joining (in response to a friend's request) has been the only activity I've performed.
One thing that keeps me from investing too heavily in these sites is the struggle of how to move my book data in and out of any of these sites. For any given site, I look for APIs that help in that regard as well as any feeds that might allow users to easily import and export data.
In other words, I'd like to use any website of choice and have my information show up on all of them. I'd even be willing to program such information exchange (that's where the APIs come in.)
When I write about books, I have a choice about where to write -- on this blog or on one of the book social network services, or in a traditional print publication (among others). I will try to write in a lot of places and see what happens.