Writing well requires an unnatural amount of self-criticism. This is what sets apart truly effective writers -- they invest significant effort into not taking their perspective for granted. If you want to communicate effectively, you have to carefully examine what you know versus what your audience know sand then figure out how to convey your new, important message based on that context.
A couple who has been happily married for 20 years might be able to read each other's minds, but this is most likely not the relationship you have with your readers. We'd like to take for granted that others know what we know, or that our audience has a very similar background as ourselves, but this is almost never the case, especially if we're trying to convey new, groundbreaking information or ideas.
A similar principle applies for speaking with someone you've met for the first time. If you want to have a conversation with them, then you must establish some common ground. You have to get to know them and let them know you.
So also in writing, you must establish context. Except you are forced to depend on your written words to establish context and make sure that your audience has enough background information about what you are writing about. Unlike an active, verbal exchange, you cannot field follow up questions (at least, not right away), so you must take extra care think through your message as it will sound to your audience.
There must be a limitation to how much context you must establish, of course. If you're writing for a video game blog, then you don't have to explain what a video game console is, or what a hand held controller is. But if you are trying to introduce a new development in the video game world, then you would need to set your audience up to understand why this new information you are presenting is important. How does this new development compare to previous developments in the video game world? Why is this relevant for the typical reader on that video game blog?
Another aspect of self-criticism is eliminating clutter. Many authors will include extraneous language in their blog posts or informative articles just to fill in what seems to be the ideal blog post or article length. If you are coming up with a clean 500-1000 word message, then consider doing some additional research on the topic, then come back to finish your essay or article later.
You might ask, "Where can I get feedback on my writing, so I can improve my writing skills?" Getting a skilled proofreader to challenge you and give you honest feedback is crucial. This is why I created the website Document Grader (www.docgrader.com).
Document Grader is designed to make you think more critically about your writing habits. Try it out for free today. Also, let me know what you think -- all feedback is appreciated!