Sentence

http://en.wikipedia.org/wiki/Sentence_(linguistics)

Go openings

http://en.wikipedia.org/wiki/Go_opening_theory
http://en.wikipedia.org/wiki/Category:Go_openings
http://en.wikipedia.org/wiki/Go_opening_terminology
http://gobase.org/studying/dev/
http://www.youtube.com/watch?v=Z6zZbkDmvks
http://senseis.xmp.net/?OpeningTheoryMadeEasy
http://gobase.org/studying/dev/?sec=fuseki
http://en.wikipedia.org/wiki/Go_opening_strategy

Chess openings

http://chessopenings.com/
http://www.chessopolis.com/openings.htm
http://chess.about.com/od/openings/tp/TopOpenings.htm
http://www.thechesswebsite.com/chess-openings/index.php
http://chessopenings.org/
http://chess-openings-for-beginners.blogspot.com/
http://www.chesscentral.com/Chess_Strategy_a/201.htm
http://en.wikibooks.org/wiki/Chess_Opening_Theory
http://www.365chess.com/opening.php
http://www.amazon.com/Ideas-Behind-Chess-Openings-Algebraic/dp/0812917561
http://www.chess.com/openings/
http://chessbase-shop.com/es/products/the_abc_of_chess_openings-2nd_edition
http://www.learn-chess.com/chess_openings/
http://www.dummies.com/how-to/content/understanding-the-basics-of-chess-openings.html

Go and Philosophy

https://sites.google.com/site/shusakugoclub/go-and-philosopy

Serendipity

http://en.wikipedia.org/wiki/Serendipity

Google’s Lab of Wildest Dreams

http://www.nytimes.com/2011/11/14/technology/at-google-x-a-top-secret-lab-dreaming-up-the-future.html?pagewanted=all
http://www.dailymail.co.uk/sciencetech/article-2061823/Google-X-lab-Where-engineers-design-talking-fridges-lifts-space.html

Critical thinking

http://en.wikipedia.org/wiki/Critical_thinking