You may complete any exercises from these sites for practice, and turn them in for extra credit!

English Works! : Interactive site with a ton of exercises - check it out!

About.com's grammar links:a good starting place for an overview of parts of speech

Grammar Slammer: Organized by topic, lots of help with grammar and style.

Grammar Lady: Register (free) for the msg board; get help on grammar Qs. Free hotline, too!

English Grammar Club: Help for ESL students, on the 8 parts of speech

Blue book of grammar: some basic exercises and answers - practice makes perfect!

Interlink Grammar Center: Parts of speech, and interactive quizzes

Houghton-Mifflin Education Place: interactive grammar exercises and more... very good!

Daily Grammar: Tons of exercises, with answers below.  EXCELLENT for practice!

Western Grammar Online: A grammar guide, with interactive quizzes

Interactive Grammar Book: Choose a topic, go to explanations &  exercises.

CCC Guide to Grammar & Writing: Well designed site, tons of info.

The Armchair Grammarian:  Decent site, with a number of exercises...

Big Dog Grammar: Online, interactive exercises from the Big Dog!

Dr. Vavra's Self-Paced Grammar Course: Aimed at HS and college, some good stuff!

Grammar Bytes! Interactive exercises to help you with s-v agreement, there vs they're, and much more!