To find information about people who use the type of app you are creating:

1. Start with a Google Search, look for specialized articles in online blogs, magazines places like that. Try to locate the sources that the articles use as reference.
2. Pew Research Center – http://www.pewresearch.org/
   They have a lot of information on current trends, especially in ares such as social media.
3. There are a variety of research firms, many of them give away free information/reports via their blogs or other postings
   

   Deepdyve
 – www.deepdyve.com/
   Science Direct – www.sciencedirect.com/
   Nielsen Norman Group – www.nngroup.com/reports/

   Forrester – 
www.forrester.com/home