For games in any subject area:  http://www.mrnussbaum.com/ 

To practice vocabulary and help those in need: http://www.freerice.com/ 

Reading Skills Practice: http://www.internet4classrooms.com/skills-4th-langbuilders.htm

Study Island (to be used with your username and password): http://www.studyisland.com

 Games and activities: http://www.weeklyreader.com/wr/6

Halloween Web Hunt: http://www2.scholastic.com/browse/article.jsp?id=3748278

Goosebump Graphics: http://www.scholastic.com/goosebumpsgraphix/games/findyourfamily.htm?ESP=KIDS/ib/20100929/awa/goosebumps_findyourfamily/featuredarcade/button/stacksgames/img////

Fun Brain Teaser Puzzles: http://www.toytheater.com/puzzles.php