Creative writing is a never-ending learning process! No matter how good you think you are, you can always be better. It's vital to learn and improve your writing as much as possible, and that's where these writing resources come in handy…
Most universities offer complete creative writing programs, but when it comes to free resources, only a few have any of real value. Purdue's Online Writing Lab is definitely one of the best to help you find a wide range of pretty awesome resources to improve your writing.
The OWL contains a lot of information pertaining to academic writing, personal correspondence, and community-engaged writing, but the creative writing-focused material is quite extensive.
The Writing Process -- This section contains information on the pre-writing and development process, including outlines and questions, and themes. You can also find details on dealing with writer's block, proofreading, and more about the nitty gritty details that go into sitting down and writing.
Common Writing Assignments -- This section has information on book reports, reviews, academic papers, research papers, and other types of writing assignment. They may not be creative writing types, but it's a good refresher course for ghostwriters and copywriters.
Mechanics -- This section gets into the actual mechanics of writing: sentence structure, spelling, numbering, the parts of speech, sentence clarity, and other nitty gritty details. Definitely worth looking over if you're not 100% certain that you're writing every sentence perfectly. (I know I don't have that total confidence…)
Grammar -- This section looks at grammar, including adjectives, adverbs, spelling, prepositions, pronouns, and the list goes on. All writers struggle with some grammar elements, and this page has resources to help you learn the proper way to create beautiful sentences.
Punctuation -- This section looks at commas, colons, apostrophes, semi-colons, hyphens, and all the rest. If you're anything like me, you've struggled with proper punctuation on more than one occasion. Not the most enjoyable lesson, but very important to learn.
The OWL is definitely worth checking out if you want to sharpen your writing skills!