An incidental result of using the online form is that Google provides a summary of responses that includes, for questions that require a Yes/No response or multiple choice selections, some pretty charts that summarise the answers.
At the moment, because there are only 15 responses to the question "What Social Networking Sites do you use for genealogy?" the data is interesting but not particularly valuable. As the number of profiles increases so will the value of the data contained in the graph for this question.
I realise that the results are skewed as those people who have responded to my invitation to be profiled are technology users. I have written to a number of others who do wonderful work in genealogy but who are not tech-heads, so far not one of these people has reaponded to my request for a profile.