Using the Apostrophe Correctly

The apostrophe is often misunderstood and generally misused by both native and secondary English language writers.  If you are preparing to take the TOEFL, GED, or other college entrance exam, you will need to know how to use the apostrophe correctly in order to gain a passing score on the essay portion. www.agendaweb.org/grammar/apostrophe.html

The Misunderstood Comma

The comma is one of the most misunderstood and misused punctuation marks in the entire English language.  Even native speakers with advanced degrees commonly misuse the comma.  While understanding the correct usage of the comma can be confusing, it is not a lost cause.  Learning a few basic comma rules can significantly increase your ability to [...]

English Punctuation Rules

Using punctuation correctly can be confusing, even for the native language speaker.  Fortunately, you can get needed punctuation help here by learning the basic rules for using periods, commas, colons, and the dreaded semicolon. http://esl.about.com/od/englishgrammar/a/a_punctuation.htm