Demographics And Psychographics

1) What information do media companies use to create a demographic profile of their audience?

They use Class, Age, Gender, Ethnicity/Education to create a demographic profile.

2) Why are media companies and advertisers increasingly using audience profiling and not just demographics?

Audience profiling, following the above four principles, enables businesses to determine exactly where to invest their marketing resource

3) What psychographic groups fit YOUR own interests and lifestyle? Explain your decision and remember you may fit into two or three different groups. 

I think i fit into the aspirer group because i'm materialistic and i find fashion and trends important.