Content review processes such as Featured article candidates (FAC), Featured list candidates (FLC), Good article nominations (GAN) and Peer reviews (PR) are at the core of establishing and maintaining high standards for Wikipedia articles, and provide valuable feedback on how to achieve these standards. Reviewers in these processes tend to gain significant respect in the community for their work. Despite the prestige of the job, such reviewers are in short supply, and 2009 saw a reduction in reviewer participation by most measures.