English Help:

Guide to Grammar & Writing
Online English Grammar – Click on the list of subjects, punctuation guides, writing tips, etc.) (click on English tests, then List of English Language Tests and Games, to find lots of quizzes and games to help you learn English grammar.
List of English Language Tests and Games – Scroll way down the page to the topics; select the topic and the level; most topics are free; those that are not, have a lock symbol.
OWL Online Writing Lab from Purdue University – Scroll down to select from many helpful writing topics.
A Quick Guide to English Punctuation – Click on the yellow buttons.

Spelling:

Spelling: A Key to Good Communication – Study the lessons, do the exercises, check your work against the key, and study the word lists.
Spelling it Right! Learn to Spell Confidently – Scroll down to the topics; includes spelling rules, how to memorize, worksheets, exercises that can be printed out, word games, advice, words used in various professions, and even Hangman.
Quia – Covers spelling of words used in the GED; learn by playing Hangman.

Writing:

Contemporary’s GED Language Arts, Writing – McGraw-Hill’s Online Learning Center; has lessons, essay scoring checklist, practice tests, flash cards, and writing handbook.

Reading:

Contemporary’s GED Language Arts, Reading – McGraw-Hill’s Online Learning Center; has lessons, practice tests, and additional readings.

Study Skills:

How-to-Study.com: A Study Skills Resource Site – Many topics to choose from.
Study Skills and Other Helpful Resources – These resources offer practical information and tips on developing good study skills.

Math Help:

Mathematics GED Practice Test – From McGraw Hill Online Learning Center.
Math.com Help – Pre-algebra, algebra, and geometry
Pre-GED Math Assessment – 45-minute practice quiz

GED Science Site:

Contemporary’s GED Science – McGraw-Hill’s Online Learning Center; has lessons, practice tests, and additional readings.

GED Social Studies Site:

Contemporary’s GED Social Studies – McGraw-Hill’s Online Learning Center; lessons, practice tests, and additional readings.

Online GED Practice Exams:

SteckVaughn GED Practice.com
4Tests: Your Free, Online, Practice Test Site – First, click on the link to each section of the GED [there will be information on what that section covers]; then click on Begin Exam; and the practice exams will come up.
GED Sample Test Questions (American Council on Education) – Has a number of questions in each GED subject; shows how to use a calculator; and other tips and information.
GED for Free – Free online course which prepares for the GED; simply fill out a student enrollment profile; you must have an email address to register.
GED Test Online Course (from Test Prep Review: Your Source for Free Practice Tests. Scroll way, way down the page to Self-Assessment Modules. Select one of the 29 subjects, type in your first and last name, begin taking the practice tests, and then, click on the magnifying glass at the bottom–this will evaluate how you did.
Literacy Link – Sponsored by PBS, offers GED practice tests, Internet activities, links to a dictionary and calculator, pre-GED learning activities, and more. Register, then click on GED Connection, and you will be given your Homespace page with lots of learning activities.