A.Word.a.Day Can help!

It might be helpful to join a mailing list that sends you a new word every day. I think this site is very good. Although the words on it are harder than TOEFL words, you can learn a lot by reading the etymologies. 

For more information about vocabulary building, visit Strictly English at www.strictlyenglishusa.com.

Located in Boston MA, Strictly English is America's first TOEFL-only tutoring company.

When you need TOEFL, you need Strictly English!