7. A system comprising: a processor; a data bus coupled to the processor; and a computer-readable medium embodying computer program code, the computer-readable medium being coupled to the data bus, the computer program code maintaining persistent links to information stored on a network and comprising instructions executable by the processor and configured for: using a processor configured to perform data processing operations; receiving at a first server from a client a first single-use domain token associated with said client and a request to access a protected resource; validating said single-use domain token; generating a client authorization credential request; sending to a second server said client authorization credential request, said first single-use domain token, and a second single-use domain token associated with said first server, wherein said first server and said second server are operated within a common domain; receiving a single-use service token from said second server, said single-use service token associated with said client; processing said single-use service token to generate a response to said request; refreshing said single-use service token; and providing said response and said refreshed single-use service token to said client.
7. A system comprising: a processor; a data bus coupled to the processor; and a computer-readable medium embodying computer program code, the computer-readable medium being coupled to the data bus, the computer program code maintaining persistent links to information stored on a network and comprising instructions executable by the processor and configured for: using a processor configured to perform data processing operations; receiving at a first server from a client a first single-use domain token associated with said client and a request to access a protected resource; validating said single-use domain token; generating a client authorization credential request; sending to a second server said client authorization credential request, said first single-use domain token, and a second single-use domain token associated with said first server, wherein said first server and said second server are operated within a common domain; receiving a single-use service token from said second server, said single-use service token associated with said client; processing said single-use service token to generate a response to said request; refreshing said single-use service token; and providing said response and said refreshed single-use service token to said client. 9. The system of claim 7 , wherein said first single-use domain token comprises session information for performing session management with respect to said client.