ReTweets are replacing blog comments?

I was just reading one finnish business blog and suddenly I realised that there are tens of ReTweets per post, but maybe not even first blog comment. Discussion on blogs is moving into microblogs = Twitter.

Tip for bloggers. If you haven't installed TweetThis or ReTweet buttton on your blog, do it now.

http://richardxthripp.thripp.com/tweet-this

http://www.bloggerbuster.com/2009/03/how-to-add-tweet-this-links-to-your.html

and so on...