Yeah, yeah… practice what you preach, I know. And I also know how hard it is to check one’s own work when you’re too busy writing. But the thing is, publishing in the web is still publishing and any serious writer should be focused on the quality of his or her work. Ergo, proofreading is a must. Since proofreading is difficult if done on your own work, I suggest that you ask someone else to check for typos and grammar errors. You can have it done by professionals, since there are many proofreaders offering their services online. But then again, you can always ask a friend.