There are two options built into Podium for connecting to social media.
1. There's the "Podium >> Share" widget but it doesn't require connecting to your accounts, because it's for sharing your site on your visitors social media account.
2. Social Media Icons. This is done inside the "Podium >> About You" widget. Within the widget settings there are text boxes to input your social media account pages, which will make the account icon appear under your about you description.