I expect that lots of people saw this two part interview with Jonathan Klein of Getty Images at South By Southwest when TechCrunch blogged it almost a month ago. But I don't think I have seen it linked to here - and it addresses lots of the things which people here are interested in. He speaks very well and seems to have a clear vision.
The interview is in two parts. In the second part he specifically talks about Pinterest, school projects etc.
[youtube]http://www.youtube.com/watch?v=vPFhs1cre9M[/youtube]
[youtube]http://www.youtube.com/watch?v=T0mSYjL44n0[/youtube]