Special Portals -- Computing
But perhaps more interestingly computing portals involve building a web based problem solving environment to link together all the capabilities needed to compute
run programs and access dynamically status of jobs and computers -- in particular allow a uniform interface to running a given job on one of many backend compute servers
compile and debug programs
link diverse data sources with computations run on multiple backend machines
web-based help systems and collections of related scientific papers
computational steering i.e. interacting with a job (change parameters) based on dynamic results such as visualized results
See http://www.osc.edu/~kenf/theGateway/ and http://www-fp.mcs.anl.gov/~gregor/datorr/