There are two man types of research, qualitative and quantitative. Both are different yet equally useful in gathering research. Quantitive involves gathering research statistically, such as questionnaires and other numerical data. Qualitative involves an opinion based system, whereby you explain your views.

The two types of research are primary and secondary. Primary research involves a first hand account, essentially your own research that you conduct. Secondary research involves using other sources to get access ti useful information that pertains to what you are doing. Music magazines can often use reviews of their magazine (qualitative analysis) they can determine the magazine's best features. They can often determine the magazine's success based on the circulation and sales of their magazine (quantitate analysis) and help find out where the magazine sells the best.
I believe that both research types will be needed in terms of my own music magazine, as both are very important. I can use primary research using my questionnaire and other devices similar to a questionnaire. In terms of secondary research, I have access to the entire internet as well as numerous other blogs from fellow students.