Why are so many of these broken?

Because yahoo dropped support for those APIs.

  1. EZLocal simple lookup URLs for businesses (broken)
  2. Grease Monkey Scripts Making my life easier via page hacks
  3. MoLocal Easy location finder for Local Mobile
  4. MyLocal sharable local page (broken)
  5. PocketLocal Put Yahoo! Local in your pocket. (broken)
  6. Snapmap The simplest way to put a javascript map on a page.
  7. ypod Yahoo Local on your iPod
  8. ysal Your traffic updates, every 30 minutes
  9. 360/Local Haunts Hack Mapping your 360 reviews