In case some of you are remaining logged for long period of time, there is a note on the main page right now:

"On Tuesday April 30th, starting from 15h00 EDT, there will be a network relocation that will apply. We expect the network to be back online within four hours. However, due to the DNS changes, it may take up to 24 hours before everyone could gain access back to the site."

This is the first step of three major steps which will occur this year. More details about the advantages, gain of performance and related aspects will be detailed laster on.