English Plus+
Grammar Slammer's Apostrophes Showing Possession
This site discusses the correct and incorrect usage of apostrophes to show possession and examples are provided. Note that links are provided at the bottom of the page for other specific uses of the apostrophe.
Capital Community College Foundation
Guide to Grammar and Writing: The Apostrophe
What is an apostrophe? Where are apostrophes found in writing? Use this website to learn more about these crazy little punctuation marks.
SUNY Empire State College
Empire State College: Apostrophes
This resource looks at the three main uses of apostrophes: to take the place of deleted letters; to show possession; and to show plurals of letters, numbers, symbols, abbreviations and words used as words.
Other
Sandhills Community College: The Apostrophe
A valuable resource for learning about the uses of the apostrophe in English punctuation, including apostrophes with possessive nouns as well as contractions. Provides examples.
![Bellevue Community College: Apostrophes [Pdf] Handout](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Bellevue Community College: Apostrophes [Pdf] Handout")
Other
Bellevue Community College: Apostrophes [Pdf]
Resource explains the three uses of the apostrophe and provides examples. Requires Adobe Reader. [PDF]
Online Writing Lab at Purdue University
Purdue University Owl: Exercise: Apostrophes
This lesson has twenty items to test your understanding of apostrophes. Print the exercise and punctuate correctly. Answers are provided at the end of the exercise, along with an online handout on the rules for using apostrophes.
Capital Community College Foundation
Guide to Grammar and Writing: Exercise Plurals & Possessives
This site offers exercises in the sometimes confusing use of plurals of possessives. In each space write "C" if correct, or "I" if incorrect. Then click on "Submit Application" for the answers.
English Plus+
Apostrophes With Possessives of More Than One Owner
When to use the apostrophe when more than one person shares the same item, and when similar items are owned individually by different owners. Examples are provided.
ACT360 Media
Writing Tips: Sentence Builder: Apostrophe
A brief description of the rules, usage, and examples of the "apostrophe" in English punctuation.