I found this post at Winds of Change interesting. The basic issue is some webloggers disputing the liberalism of other webloggers based on their level of criticism. I.e., weblogger A is not a liberal because A criticizes liberal positions much more often than conservative ones.
That’s a interesting argument. It’s very similar to the argument used to criticize the same “pure liberal” crew who complain about the USA and not other countries that do much worse. Apparently concentrating criticism on one’s own side is OK when it’s the USA but not OK when it’s liberalism in the USA.