I read articles and a question about searching people on internet. Nice, thanks! I am now using pipl.com.
But these site not search people on Orkut. “Orkut” is more popular in India, rather than other social site.
The only guide I could find is from Wiki How, http://www.wikihow.com/Search-for-people-on-Orkut
The article, basically tells you to use the Search within Orkut and then filter results using parameters such as gender, age etc.