Language Arts Site:
The top Language Arts websites for students.

Wordnik: 
Wordnik, an online English dictionary with access to definitions from multiple sources.

60 Second Recap: 
Dedicated to making the great works of literature accessible, relevant, and, irresistible to today's teens.

Purdue OWL:
Writing resources and instructional material.

Grammar Monster: 
Grammar Lessons and Tests.

Wordsmith:
A worldwide online community of people who share a love for words, wordplay, language, and literature.