CyberSleuth Kids is a great resource
for kids of all ages.

It's known as the:
"Internet Search Guide for the K-12 Student."

Literature | Grammar | Writing

One of our own personal favorites,
Merriam Webster has
a great online Dictionary for you to use,
and
has a Thesaurus too.

Their website also includes
Word Games,
Word of the Day,
Word for the Wise.

Also check out WordCentral.com
for more Kid's Stuff.

An advanced area for
Dictionary and Thesaurus searches.
Has some nice tools, but challenging for kids.

One nice feature is called the:
Wordsmyth Vocabulary Quiz
which lets you make a random vocab. test.

An Internet Accessible Thesaurus:
Roget's Thesaurus, 1911, version 1.02

(Released into Public Domain)

It's a little experimental right now...

Literature | Grammar | Language