As part of my 2002 Honours year in Computer Science, I've been conducting research into Network Load Balancing under the supervision of Dr David Glance. In particular, improving the performance of the Linux Virtual Server project by implementing dynamic feedback of server load information.
The results were presented at the 2003 Australian Linux Conference; the paper is available here: feedbackd-lca03.pdf (93.4 kB).
The 'feedbackd' project is an implementation of dynamic feedback, released as an open source project.