Alternatives to LibraryThing

I use LibraryThing for a long time but the interface is very unintuitive and "oldschool". Are there some better alternatives out there?

I want:

• Nice looking GUI
• Good API to include recent books on my blog
• Possibility to add own book covers and import books from other sites like Amazon.
• Import/Export option

From web app Aaron

• I like goodreads

  Aaron : Great import/export API!
  From Philippe Mongeau

• I played around with books.google.com it works great for keeping an online library, you can find my personal library here. There is also the Amazon Reading List Plugin for LinkedIn If you're a big linkedin user.

  Aaron : WOW I didn't know that google had such a service!
  From Evan Carroll

• I like Open Library. It's a wiki, and they link to archive.org's on-line reader for any books that are available. Here's The Little Gingerbread Man as an example.

  From Don Kirkby

• Have you looked at Shelfari? Looks good to me, even though some features of LibraryThing are still missing.

  GollyJer : I love shelfari, just wish they would add some social network integration. eg. - facebook http://www.shelfari.com/groups/15217/discussions/98356/Shelfari-on-Facebook?showall=true&ActivityId=128155038

  Aaron : Shelfari looks great but doesn't work for German books (expect i search for the ISBN).
  From Oliver Giesen