Following up on yesterday's discussion with new Foursquare product manager Siobhan Quinn, North Carolina blogger Wayne Sutton (@waynesutton) and I took time this afternoon to talk about how we see businesses benefiting from location-based services, and Google's role in the market. Additionally, we took a few minutes to talk about Facebook's announced changes to their approach to privacy, updated today in an event chaired by CEO Mark Zuckerberg.In short, I said that I while I have always considered my content on Facebook public and open, the company's changes have negatively impacted users and were made worse through their poor rollout and a lack of clear communication. You can hear our comments in full in the below embedded podcast, and catch Wayne's blog here.