It seems that since yesterday the ASIB has been down. It's Easter, no one has complained so far, and in general I'm patient when it comes to these things, so no rush. The Arctic ain't going anywhere, and besides we have the ASIF now.
Apparently, TypePad has to deal with some DoS attacks:
On the evening of 17 April 2014, the Typepad blogging service went offline. Details are still emerging, but it appears that there is a denial of service attack underway. All Typepad blogs are affected, and the problem continues on the morning of 18 April 2014.
After being restored for a time, Typepad went down again on the morning of Sunday, 20 April 2014.
Typepad support is providing status updates via Twitter on the @typepad account.