If you are posting your resume online for display make sure to check the privacy settings to determine who has access to your information. Is your information open to the everyone, or limited to employers only? This is especially important for contact information. Do not post your full address and phone number online unless you are prepared for junk mail, prank phone calls and possibly worse. This applies to posting your resume online as well as social media.
I recommend putting your own name into Google. This can be an eye opening experience. Is your Facebook page at the top of the listings? Do you want it to be? Facebook, Linked-In and other social media pages can be found through a simple internet search. Please use this to your advantage. If employers viewing your page is damaging to your job search than change your privacy settings to limit who can view your information. If on the other hand, you find social media a valuable network tool make sure to include lots of keywords which will bring your page to the top of the search listing.