Last week at the D6 conference, Om Malik caught Jeff Bezos on video after his on-stage appearance (in which he talked about a new pay-per-download movie service). In the five-minute hallway interview (embedded below), Bezos explains why a Web retailer is offering cloud computing services. The answer is because Amazon, as a Web-scale application, had to build these services for itself anyway. (Many investors and Wall Street analysts apparently still don’t get the connection).

Also, when asked if Amazon is considering starting its own venture fund to encourage Web Services startups like the iFund or the fbFund, Bezos laughs, and points out that plenty of venture-backed startups are already using Amazon’s Web services.

If you haven’t seen the video yet, here it is:

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