PUBLIC MARKS with tags services & amazon

“Developers, businesses, universities and research institutions have been asking us for years to use the Alexa web crawl for their own very specific purposes. They don’t want a search engine that returns 10 or even 100 results for a given word or phrase. They want a search engine they can program to return millions of results based on thousands of terms, and then analyze those results for even more specific data,” said Niall O'Driscoll, Alexa vice president of engineering. “The Alexa Web Search service makes this possible, and in a simple, affordable, and scalable way. Now any developer with an idea can use the power of search to build their own business, answer complex research questions, or discover new slices of data never queried before.”

RightScale's platform and expertise helps customers create scalable web applications running on Amazon Web Services (AWS).

If Flickr and it’s ilk could be considered tier one applications, then surely Amazon S3 much be considered a tier zero service.