Memory Games

Here are a few links to some free memory games. They may be directed towards children, but I think people of any age could find them useful or fun exercises to improve attention & memory (or even better: you can devise your own memory games, to play with a friend, away from a computer screen):

http://faculty.washington.edu/chudler/chmemory.html
http://www.kidsmemory.com/memory_face_off/face_up_memory_game.php
http://www.kidsmemory.com/light_it_up/light_it_up_memory_game.php
http://www.kidsmemory.com/number_scrambler/index.php
http://users.netrover.com/~kingskids/memory.htm