We have all seen google app engine, amazon's web services, SQL Server Data Services (SSDS) from Microsoft, and others. The whole premise behind the movement is to make your IT infrastructure "rentable". I for one think that this is both a great idea and a bad one all at once. For instance, it makes coding mashups a breeze - on the other hand you have concerns about where your data is and if it is secure. The whole trend is something to keep an eye on as it is gaining in popularity.
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