Besides spelling, grammar is the most important aspect when writing anything. It can cause you to lose a job or to get a bad grade on a school assignment. Using correct grammar is very important when writing online because a lot more people will see your papers. If you continually use bad grammar then no one is going to want to read anything you write. You must therefore use a grammar checker before submission.
One tip that I find helpful is to type everything with Microsoft Word before submitting it to my online counterpart. This is because Microsoft word has an automatic spelling and grammar checker. However it does not catch everything, so you must proofread as well. If you find that you are continually having difficulty with your grammar there are plenty of classes that you could take either online or at a teaching facility near you. A composition class can be very helpful with this subject.
When a company is searching for a new employee the first thing they do to weed out the applicants is to check the grammar and spelling in their cover letter. If even a single mistake is found the application is thrown in the trash without being read. This may seem harsh but considering how easy it is to use correct grammar, it’s really not. On another note, when submitting assignments in school, whether online or in classroom, a good portion of your grade comes from the correct use of grammar.
All in all, grammar is a very important part of the English language and should be taken seriously by all.