I think it’s nice to read into these things, as it really helps. But it is must that you keep up with proper info, as these could be very damaging. So, that’s why we need to be very careful with the way we go about these things. I am no expert, but I say take a look at this http://www.blackburndistributions.com/blog/top-40-nootropic-blogs/, it’s quite brilliant.