A command line node js module for determining the email of a company employee.
$ npm install -g rapportive
Based on the following blog posts about using rapportive's api to social engineer the emails of marketing/sales targets.
http://jordan-wright.github.io/blog/2013/10/14/automated-social-engineering-recon-using-rapportive/
and
http://nathanleclaire.com/blog/2013/11/23/how-i-automated-finding-almost-anyones-email-address/