Susan,
What type of accounts do you have on Facebook? Do each of you have profiles and are the accounts in your personal name or your career center? If they are in your personal names, have you considered the sustainability of your strategy? What would happen to the audience (friends) you have built over time if one of you left the company? Would the next person have to start over? If you are using profile accounts, have you considered your long-term strategy? Facebook profile accounts limit you to having 5,000 friends. It may see as if you'll never reach this amount but over the course of years, if you consistently build your Facebook audience, you may reach this limit. What would you do then? If you haven't, you may want to consider one fan page for your Career Center as a means to introduce students to the career center through Facebook and a Career Services profile page to "friend" alumni depending on what your goals are for your accounts. If you create a Facebook Fan Page, think of it as an online, Facebook Career Center. You can create custom tabs to promote any self-help resources such as any job searching tools your school provides or automated resume assistance, events, etc. Here's an example of a career services office that integrates their Twitter and Pinterest using custom tabs: https://www.facebook.com/UWCALSCareers.
Please let me know your thoughts about some of the points I have raised.
Robert Starks Jr.