UW has rejoined PlanetLab. From PlanetLab's home page:

PlanetLab is a global research network that supports the development of new network services. Since the beginning of 2003, more than 1,000 researchers at top academic institutions and industrial research labs have used PlanetLab to develop new technologies for distributed storage, network mapping, peer-to-peer systems, distributed hash tables, and query processing.

The new PI for Waterloo's PlanetLab nodes will be Prof. Ian Goldberg. Please contact him if you would like access to Waterloo's PlanetLab slices.

Some projects we will be running on PlanetLab:

Sphinx
Sphinx is a compact and provably secure mix packet format. We will compare the performance of Sphinx and the current standard, Mixminion.
Improving the performance of Tor
The Tor network is well known for its performance problems. We have fixed some of these problems, and measured them in a lab setting. We will use PlanetLab to make more realistic measurements of our improvements. More information
Performance of Tor hidden services
Our study focuses on measuring and improving the performance of Tor and Hidden Services. By observation, we found that the performance of Tor provided to a user is dependent on the performance of the selected route, which suggests that Tor's load is not balanced. Currently Tor is relying on self-reported peak bandwidth as each node's capacity indicator, and bases its load-balancing algorithm on that. We are planning to measure the impact on performance incurred by the imbalance, and check the reason for the imbalance (imprecision of self-reported bandwidth, or the load balancing mechanism). Accordingly, we will propose improvement suggestions.
Distributed Key Generation
We are developing protocols for secure distributed key generation over the Internet. We will use PlanetLab to test our implementation of these protocols.