Find grade level books, includes reviews and summaries. http://www.gradelevelreadinglists.org/
Internet for Classrooms - 8th grade skills Excellent site for practicing skills in all subjects. Site includes state assessed items. http://www.internet4classrooms.com/skills_8th.htm
Helping Your Eighth Grade Child Learn Social Studies http://www.eduplace.com/parents/ss8.html
Punctuation Games http://www.gamequarium.com/punctuation.html
Daily Grammar http://www.dailygrammar.com/
SuperKids Vocabulary Builders http://superkids.com/aweb/tools/words/wod.shtml
Community Service Great site providing numerous ideas for community service. Do an advanced search to find age appropriate options. http://www.volunteermatch.org