Dart related sites

http://www.scribegriff.com/studios/index.php?post/2012/02/21/Having-Fun-with-Dart-AJAX-and-JSON

 how to use Future
 https://www.dartlang.org/articles/using-future-based-apis/

 language changes:
http://news.dartlang.org/2013_02_01_archive.html

cheat scheet
http://dartlangfr.net/dart-cheat-sheet/


 http://news.dartlang.org/2012/06/proposal-for-first-class-types-in-dart.html

https://www.dartlang.org/articles/optional-types/