DoKakuro.com
Dokakuro.com: play kakuro online with our unique player, and get books of puzzles to play
http://www.dokakuro.com/
Best Kakuro
Best kakuro / cross sums puzzle creation software
http://www.bestkakuro.com/
Kakuro.com
Free kakuro and cross sum puzzles, download kakuro master or play online!
http://www.kakuro.com/
Kakuro.net
Kakuro.net
http://www.kakuro.net/
SaidWhat.co.uk
Kakuro puzzles - play free kakuro puzzles at the puzzleclub, range of difficulty kakuro puzzles...
http://www.saidwhat.co.uk/sudokus/kakuro.php
Kakuropuzzle.com
Puzzle site for kakuro cross sums
http://www.kakuropuzzle.com/
Wikipedia
Wikipedia
http://en.wikipedia.org/wiki/kakuro