Found an interview with Stephen Chan from ZL Technologies, which is a storage management company.  He thinks that the future of ediscovery is in the cloud, mainly because companies are watching dollars more closely:

Well, cloud is all going to continue to provide a lot of the benefits. I think that proponents have always spoken up which is a lower TCO, less resources and less management overhead for the companies that utilize the cloud. I think the challenge will always be to ensure that the solutions are of equal and similar capabilities as the on-premise solutions, which I don’t, again, I don’t feel that there’s any reason for there to be any difference. The trend going forward will be this. I think that you see, especially, in this economic climate you have a lot of companies, which are really focusing on their costs.

And because of that, cloud computing makes a lot of sense for them. But once they make that decision, once that sort of let’s say for example, its cost in this case that gives them that impetus to get over the edge and say, okay, we’re going to go cloud. What we’ve seen is once they decide to cloud in any fashion, maybe initially it’s just a storing a little data out there, the application’s still internal but they’re using cloud storage to store the data. It’s actually a very small hump for them to go over and push everything out there.

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