An old writers trick to improve your writing skills is to join a writers group where you can share your writing and receive immediate feedback on your writing. Well I have found a site that offers something comparable to a writers group for resumes: Resume Social .
On Resume Social you can upload your resume and receive feedback from other users and hopefully you will receive constructive criticism so that you can improve your resume. The key word is constructive criticisms , just like any website with a comment section, comments can degenerate into immature name calling and an evaluation of mothers. But usually there are nuggets of gold, for those willing to put themselves out there.
You can also browse the resumes of people in your industry to help you get inspiration on how to improve your own resumes. Lets face it, not all of us are blessed with the creative gene. Even for the blessed, taking a browse won't hurt.