Absolutely! When personalizing an opportunity, you will see a blue 'Enhance Contacts' button at the top right of your list of contacts. Simply click this button and Pitchbox will retrieve additional contact information for every contact in your list, wherever possible.
This includes (but is not limited to) links to Facebook, Twitter, LinkedIn, Gravatar profiles, as well as job title, location, a first and last name, and other associated websites. Once you have enhanced contacts, click on the star in the 'Info' column next to each contact to view the Enhanced Information.