Examples:
Spam filters
http://www.businessweek.com/the_thread/blogspotting/archives/2007/09/could_yahoos_sp.html
http://www.blog.jbi.in/tipsntricks/turn-off-spam-filtering-in-gmail-and-yahoo-mail/
Finance
http://arstechnica.com/tech-policy/news/2011/01/algorithms-take-control-of-wall-street.ars
http://online.wsj.com/article/SB10001424052748704637704576082512439373244.html
Competition
http://www.theregister.co.uk/2011/09/01/foundem_accuses_google_of_wmd_program_against_vertical_search_rivals/
http://www.theregister.co.uk/2011/03/11/google_admits_search_algorithm_whitelists/
http://arstechnica.com/web/news/2010/12/google-tweaks-algorithm-to-punish-bad-businesses.ars
Privacy
http://www.slate.com/articles/health_and_science/future_tense/2011/09/small_dictators_big_bots.html
http://searchengineland.com/google-no-longer-guessing-about-celebrity-sexual-orientation-95065
Life in general – Algorithms shaping the world around us and inside us, and specifically: THE ALGORITHMS OF WALL STREET
http://gizmodo.com/5824983/humanity-is-owned-by-computer-algorithms-and-resistance-is-futile
