In reply to Bhumika Soam:
Right, permit me to offer some advice:
1. State what institution you are working for, what the research is, and what your position is (and who is responsible for the research, likely to be you supervisor). This will help your potential participants to identify that you are a bona fide academic and not a scam merchant (well, of course it won't, but you need to get people to trust you to do your survey, right? Be fully open)
2. This is human subject research, whether you think it is or not, and is likely to be subject to ethical review at your institution -- have you gone through that process and gained approval? If so, state so. How do we know you have permission to conduct this study through your institution? The onus is on you to convince us.
3. What in it for us? Why should we give up valuable internet-time-wasting time to help you? What is the benefit to participants? Are you going to pay us? (Brill! Ah, but see point #2) Are we going to get cheaper better kit in 20 years time when you're lauching your new gizmo that helps us all climb E12 with impunity? Think about how to engage us... you need us more than we need you at the moment.