These are good questions.  Digital humanities centers have been dealing 
with these questions as they've accumulated projects, and sometimes they 
have dumped them on libraries to try to preserve.  Leslie Johnston has 
experience with this, which she summarized recently: 
http://blogs.loc.gov/digitalpreservation/2013/04/digital-humanities-and-digital-preservation/ 
.

You might want to post to 
https://groups.google.com/forum/?fromgroups#!forum/digital-curation as well.

--Kevin

On 5/17/13 9:51 AM, Tim McGeary wrote:
>     - Should we begin considering a cooperative project that focuses on
>     emulation, where we could archive projects that emulate the system
>     environment they were built?
>     - Do we set policy that these types of projects last for as long as they
>     can, and once they break they are pulled down?
>     - Do we set policy that supports these projects for a certain period of
>     time and then deliver the application, files, and databases to the faculty
>     member to find their own support?
>     - Do we look for a solution like the Way Back Machine of the Internet
>     Archive to try to present some static / flat presentation of these project?