Starting a social media site can be overwhelming. Here are some things to think about first:
What is your objective? What do you want to accomplish? Establish your goals before starting an account.
Who are you trying to reach? Current students, alumni, prospective students? Knowing your specific audience will direct content for your account.
Do you have a dedicated social media person or are multiple people managing the account(s)? Managing a social media account can take a lot of time, it is important to plan for it.
You don't need to have every account available. Make sure you are able to manage all the accounts you have. The platform you choose depends on the goals you have.
Managing social media is more than just posting. Be prepared to monitor activity on accounts, and use existing tools to help with scheduling in advance.