the blog-specific act of collectively piling on an individual for actions that are contrary to the authors' political beliefs, espcially to portray that person in a negative light while selectively avoiding any sacrifices/contributions they may already have made

See also: frogmarch

v. collectively or individually finding someone/something to blame for a problem, as opposed to brainstorming which connotes finding solutions to a problem

n. the act of finding someone/something to blame for a problem

(from a TV ad for HD television)