Adding Campaign to Contacts but also want it associated to Account

Adding Campaign to Contacts but also want it associated to Account

Hi,

I am trying to track which contact and account I have contacted via LinkedIn. Right now, I have created a new "lookup" field in Contacts to lookup Campaign. However, I cannot create a related list for Account or create a report to show which Contact and their associated Account I have contacted.

What is the best setup to track this?