How can I find the names, phone numbers, and zip codes of all pet hospitals
and kennels in the United States?
This question IS NOT for the ~10,000 businesses.
This question is, how do I get it?
1) Ask on Google Answers? What's a fair price?
2) Ask on another site? (either a similar answers site, or one
specific to coding) How much should I expect to pay?
3) Have some of my web programming friends bid on this? Friend's rates
are cheaper, but discipline to complete thoroughly is perhaps weaker
friend-to-friend.

Infospace, Google Local, Yahoo! Yellow Pages, and/or Amakai (sp?) are
the likely ultimate 'sources' for this informaiton. Google's API
agreement says 'not for commercial use'. I plan to use this to perform
a market study, and to perhaps start a commercial business.

Please help me learn the most cost-effective way to get this information.
Thank you,
-Brett
ps. Feel free to bid, and I will submit the bigger question directly to you.