"Portable continuations" are a type of continuation that allow a continuation to be serialized to disk, and deserialized on a different computer.

<ul>
<li><a href="http://stackoverflow.com/questions/1512930/what-are-scala-continuations-and-why-use-them">Scala supports them, as of v2.8</a>
<li><a href="http://vimeo.com/6614042">THE SWARM VIDEO</a> gets mentioned quite a bit
<li><i><a href="http://stackoverflow.com/questions/289370/is-there-a-fast-language-that-supports-portable-continuations">more</a></i>
</ul>


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<a href="http://logic.cs.tsukuba.ac.jp/~asami/resources/papers/master.pdf">Scalable Web Application Framework based on Delimited Continuation</a>
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