Overall, I had three Google Hangout calls. First, I talked to two managers and was going through motivational and resume related questions. We also discussed potential projects of the internship and also went through the internal structure of the department at Salesforce.
After that, I had a final interview with a hiring manager for which I had to prepare a presentation which I was presenting via Google Hangout. There weren't any technical issues with that and therefore the presentation went smooth and we discussed what I presented and afterwards some more things about me and Salesforce.
Overall, a very convenient process.