[samdk]

You can have Goodreads do something like this, in the newsletters and other mail section you can check the 'send me the monthly new releases email', 'only send this to me if it includes an author I've read', and click the customize button and deselect all of the genres.

And then you end up with an email which has new releases by authors you've read before.

I generally have no use for most of what Goodreads does, but this combined with the ability to pull my Kindle purchases in automatically is pretty useful.