Puzzles
Crosswording - http://www.crosswording.com/
Print yourself a free crossword puzzle so you wont get bored on the train.
Puzzletome - http://www.puzzletome.com/
Online puzzle site featuring contests, reviews and references. Also includes news, FAQ and forums.
Quiz Factor - http://www.quizfactor.com/
Create your own quiz and questions or play from a wide range of free quizzes online.
The National Puzzlers League - http://www.puzzlers.org
An eclectic crowd who enjoy all forms of wordplay and are continuing the traditions.
Xwords.co.uk - http://www.xwords.co.uk/
Play online or print and solve. Crossword creation tool.