Social Media for Résumé-Building

Dan Schawbel advises on Mashable.com of the 10 best social media Web sites for résumé building. The Web sites allow users to create their own résumé-like profiles, edit résumés online, have experts review them, print them, share them on social networks, etc.

How do you use social media to build and share your résumé? While I share my résumé on my LinkedIn profile, I had no idea some of these other useful Web sites existed to actually build and receive advice on my career profile. I'm interested to hear from you all on the Web sites or social media platforms you use to help build your federal résumé, answer knowledge, skills and abilities questions on federal job forms, etc.