The tutors at Stockton’s Writing Center, like all college and university writing centers, cannot edit papers for students. However, there are some credible online services available, for a fee, of curse. Among them, the best well known is Grammarly http://www.grammarly.com/?q=proofreading
We will post others as we get good feedback.
Want to get better at proofreading your own papers? Essay Tips has multiple blog posts on How To Proofread.
the 12 Common Errors Checklist from UW Madison’s Writing Center. It’s a great proofreading guide to make sure you’re not overlooking anything in your essay.