Literacy:
http://www.tki.org.nz/r/wick_ed/literacy/interactives.php
http://www.woodlands-junior.kent.sch.uk/interactive/literacy.html#7
http://funschool.kaboose.com/arcade/language/index.html
Numeracy:
http://www.ictgames.com/resources.html
http://www.tki.org.nz/r/wick_ed/maths/interactives.php
http://www.bbc.co.uk/schools/websites/4_11/site/numeracy.shtml
Other:
www.bbc.co.uk/children Lots of fun and educational games and ideas.
These websites are all ones that I have either used or been recommended. If you feel the content is inappropriate please let me know.