Things in the Local Search space are out of the control of the typical small business owner; even if they know about the Google Local Business Center, Yahoo Local Listings, or Bing Local Listing Center, they’re only covering half their bases (according to last year’s 15 Miles survey.) And other portals and data companies typically don’t push updates live with the same alacrity as Google and Bing.
http://searchengineland.com/local-search-complexity-smb-frustration-36839