As of right now ( PM EST on 8/9/09) the servers belonging to Phoenix Labs appear to be down - or at least extremely slow to respond - and have apparently been so for most of the weekend thus far.
Since Peer Block still defaults to using the old Peer Guardian lists hosted by Phoenix Labs, this means that Peer Block may not be able to update its lists.
If you have cheap, free adware, spyware programs then yes you want all the free programs you can get, but don't run them at the same time.
In fact, Peer Block will be switching over to them by default starting with our next release.
Based on Yosemite Sam, he is bad-tempered, loud-mouthed, money-hungry tycoon.