AWS News Blog

Jeff Barr

Author: Jeff Barr

Jeff Barr is Chief Evangelist for AWS. He started this blog in 2004 and has been writing posts just about non-stop ever since.

Using AWS and XSLT to create JSON

It is always interesting to see how a developer’s background, experiences, and the contents of their “mental toolkit” come together in unique approaches to problem solving and creative thinking. Here’s an example of what I am talking about. Alan Taylor of has been building applications with AWS since the early days, starting out with […]

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Amazon Mechanical Turk and Image Processing

Image processing (and its cousin, machine vision) both entail designing algorithms to process pixel-based images and to extract recognizable information from them. Earlier today I saw the following request on the Ask Metafilter site: i need an algorithm to extract statistics about the diameters (in pixels) of some roughly-circular objects from an image file. Having […]

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DVD Wars: Blu-ray Disc vs. HD-DVD

It’s VHS vs. Beta, all over again! Back when I was young, there were two main consumer video tape formats, VHS and Beta. Both had their advantages and disadvantages, and it took years for the market to decide which one was best. VHS ultimately prevailed, to the extent that many of today’s youngest consumers don’t […]

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ACM Queue: Interview with Amazon’s Werner Vogels

People more persistent and clever than I have managed to find the Werner Vogels interview in the current issue of ACM Queue. Werner is Amazon’s CTO and the author of the All Things Distributed blog. Werner goes into considerable detail on the inner workings of the Amazon site, scalability issues, our internal services architecture, and […]

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Wishlist Buddy

Thom Wetzel sent me information about his new site, the Wishlist Buddy. As Thom notes: I’ve noticed that a lot of the times with books, DVDs and video games, the prices usually start out high and work their way down to less than half price over time. I used to add items to my Amazon […]

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ACM Queue: AI Gets a Brain

The newest issue of the ACM Queue contains an article that I co-wrote with Felipe Cabrera (VP of Software Development at Amazon). The article, “AI Gets a Brain“, covers the fundamental concepts behind the Amazon Mechanical Turk. We start off with a historic review of the original Mechanical Turk (covered in depth in Tom Standage’s […]

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