Still looking to circumvent the whole need for the annoying yet effective CAPTCHA crap, I have been toying with the idea of using the Google+ comments form. Howard at Windknots and Tangled Lines uses it and it looks like a pretty clean format.
My question for all of you is do you have a Google + account?
I am not sure if it limits the ability for those who don't have it to still comment. After all, I love comments!