Jordan Webb, a current MBA student, negotiates via email (simultaneously) with two tech firms who are potential employers. Both firms have offered to create a new position for Jordan as the Director of Community Engagement to manage public-private partnerships - from promoting computer-based learning in the US public school system to improving technology access in developing countries. Jordan is married with two young kids. 

Please answer the following two questions ...

What are the pros and cons of negotiating via email versus of face to face?

In addition to base salary, what other items would you want to include in these negotiations?