Well as of right now, the server hosts guildwarsguru.com, wowguru.com, eq2guru.com, cohguru.com, and a few other misc small sites.
The first two sites generate roughly 95% of the traffic. GuildWarsGuru was roughly 80%, but WoWGuru is growing *fast*, and thus causing headaches.
We have had to customize quite a few PHP compilation flags to make WoWGuru work, which takes away from tweaks we can enable for GWG.
Anyhoo, it should become better soon