Ok so what we originally thought was a denial of service attack has turned out to be a huge influx of traffic to the site as Google has featured "unexplained phenomena" as their logo picture link of the day and we're listed at the top.
While this is great news for UM it does mean that the site is going to be practically inaccessable come peak time due to being hammered with traffic, so its something of a mixed blessing.
We're still working with our server provider to minimize disruption however it'll be a case of weathering the storm for a while, things should return to normal again in a day or so.
Note: Some of the site's features have been disabled for now to help cope with the load.
Edited by Saru, 05 September 2009 - 10:50 AM.