It's almost impossible to keep up with all the developments going on in the local space right now. One that has quietly happened without any fanfare, apparently, is the relaunch of the Yellow Book site.
Without having tested the data thoroughly, I can't report on that side of things. (Several quick category searches in my area seemed to have accurate information and there were no failed searches.) The interface is much better and the site is fast. A welcome change from the folks who, until recently, were focused pretty exclusively on the print side.