What the services started at boottime by Fedora 7 do and whether or not it's safe to mess with them.
A method for distributing cryptographic entropy in the form of numerical values to systems that need it. Collects entropy from other systems and hashes it into the pool. While I can't vouch for how much entropy is in those values it seems interesting to experiment with.
As canonical a list of things you can do to processes running on an Ubuntu machine, including starting, stopping, and disabling them. Seems to apply to Workstation and Server editions.