Posterous' DoS Attack

In case you haven't heard, Posterous, my website host has been battling a DoS attack (link to more info about DoS) for the last few days. Sorry for any outages. 

As of this moment, it seems the attack has susided, but with the nature of this form of attack, you never know when the attack will return. Please bear with me as Posterous and I try to combat this attack.

Other sources of information: