There are lots of guys who have setup their own hosts now. The rest of us have spread out to postimage, flickr, or a couple others.
I use postimage, but they had a problem with their server host a few weeks ago that almost shut them down completely, so I'm not sure how stable they are right now
Yesterday Postimage was having issues, but today it was working fine again.
I just opened that Postimage account 4/5 days ago and the third/fourth day it didn't work properly, it kept showing an error when trying to upload a photo.