establishing contact

In one of the sessions during my IlQam's seminar for PhD candidates, I remembered this one speaker, Dr S. Dr S told us to communicate with other researchers internationally especially with those prominent researchers.. he said, do'nt worry if they do not reply.. the email has no face value, they cannot see you.. so I did just that. I read their journal papers of interest and I emailed them. And indeed, some of them replied and provided me with very useful input. This has given me some points to think on further for my research.