Late last night (KST), I was reviewing my free MyBlogLog stats and noticed 8 visitors had stopped by the blog. Usually, by that time, mysysad would have had several hundred visits. I surfed over to the domain and verified it was down (this blog is hosted on the blogger.com platform and it is pointing to a custom domain). However, the blog was working with the old address, http://esofthub.blogspot.com

I pinged the old IP address - no answer. Then I pinged ghs.google.com, and it responded with a different IP address. I used that new address to update my A-Records with my domain registrar -- yahoo.

After 20-30 minutes of propagation, the mysysad.com domain was back online.

By the way, I just pinged the old address twice...no response. Update: 7 hours later - pinged again - no answer

Here is another post I wrote a few months ago about a similar issue...