This article at the New Statesman (via A&L Daily) has a decent round up of the practical failings of communism (it is taken for granted that freedom is good). The author recognizes that most of today's communist regimes have made changes toward capitalism. He also points out that repression is part and parcel of how communism needs to be implemented. His frustration is how many liberals are already turning a blind eye to the documented atrocities of communism or making excuses for them.
The comments are overwhelmingly in support of the author, though the comments in support of communism or anti-capitalism are not few.