SEARCH RELEVANCE IS A KEY TO SEARCH BUT HOW SHOULD YOU HIRE. READ IN THIS BLOG:
http://shoaibsehgal.wordpress.com/2014/02/10/curious-case-of-hiring-for-search-relevance/
http://shoaibsehgal.wordpress.com/2014/02/10/curious-case-of-hiring-for-search-relevance/