Obviously, I can't reveal the nano-niches however, you can identify, scrub and mine your own data for high profit situations. 

Hello BP! I have a question in regards to good financial bookkeeping companies. What are good companies to use for personal finance and business finance? I hear mint.com is really good for personal but you can not pri...

Are you using something like realquest/corelogic for your data?

I started attending meetings and right away I met a veteran wholesaler who lead me through my first few deals and I have since networked with many others and learned a great deal along the way.  

What is the best service to order data for mailers?

Does anyone have any recommended blogs/journals/etc that would provide the data in as concentrated a form as possible?

Don't go into this thinking that you are the exclusive, unless you hired independent researcher to source the data for you. 

I can send you some market data on the East Lansing area if you would like also.  

. - It's been proven many times over that software running in the cloud (by a responsible party) is significantly more safe than data on your own hardware.  

What data list providers have you used that you would recommend?