That's why I asked earlier. I wasn't who was using it.
I also found this comment by John Fleming back in May 2005:
"With only a limited number of weeks to prepare, we were able to quickly implement Lucene powered by EdgeComputing to put in place the infrastructure, computing resources, and management capabilities we needed to launch the ad campaign. With this solution we had complete confidence in our infrastructure and significantly reduced our expenses," said John Fleming, chief executive officer, GameZnFlix, Inc. "Rather than paying for new software licenses and hardware, EdgeComputing's innovative pay-as-you-go model efficiently served our needs."
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Akamai mirrors your site on their servers located around the world (on-demand and on 15,000 servers in 65 countries possible) giving you omnipresence, quicker download speed, and a buffer to protect your main server from a sudden spike in traffic, without having to spend too much $$ to build a Yahoo-like infrastructure. --I think only CCard transactions go straight to the home server.