Here are some excellent web sites! Please visit some of these sites to find the most helpful practice for you:
Spanish Grammar Exercises - http://www.trinity.edu/mstroud/grammar/index.html
Verb Conjugation Site - http://conjuguemos.com/
Grammar Site - http://www.lclark.edu/~benenati/gramatica.html
Grammar Exercises - http://www.studyspanish.com/tutorial.htm
Colby Grammar Exercises - http://www.colby.edu/~bknelson/exercises/?
Vocabulary Practice - http://www.vokabel.com/spanish.html
Aztec Calendar: Scavenger hunt - http://www.geocities.com/maestrahoco/aztechunt.html
Spanish Restaurant Menu Web Quest - http://www.geocities.com/maestrahoco/restquest.html
South America Web Quest - http://www.geocities.com/maestrahoco/southamwebq1.html
Ser vs. Estar - http://www.geocities.com/maestrahoco/hotpotclips/hptobefill.htm
TV Programs - http://www.telemundo.com/
Spanish Tutorial - http://www.learnspanishtoday.com/free_vocabulary.htm
Interactive Story - http://www.storyplace.org/sp/preschool/activities/petsonact.asp
Star Wars Trivia - http://www.ciudadfutura.com/starwars/html/trivia1.html
Simpsons and other activities - http://www.angelfire.com/az/billericay/games.html
Rubric Creator - http://rubistar.4teachers.org/index.php