do you feel competent to creat an internet survey? why? or why not? and do you think that the matketing research industry should be concerned about google consumer surveys? why?

do you think this methodology is better than simply asking the demographic questions? and do you see any problems with google's methodolgy

3. Most traditional consumer surveys conclude with a series of demographic questions such as gender, age, location, and so forth. Google Consume Surveys don't ask these questions. Instead it infers approximate demographic and location information using the respondent's IP address and DoubleClich cookie. The respondent's nearest city can be determined from their IP address. Income and urban density can be computed by mapping the location to census tracts and using census data to infer income and urban density. Gender and age group can be inferred from the types of pages the respondent has previously visited in the Google Display Network using the DoubleClick cookie. Google says that is information is used to ensure each survey receives a representative sample and to enable survey researchers to see how sub-populations answered questions. Inferring this demographic data enables Consumer Surveys researchers to ask fewer questions in a survey, which in turn increases the number of consumers that respond. Do you think this methodology is better than simply asking the demographic questions? Do you see any problems with Google's methodology