Looks like Postimages has packed it in.

[Diecastmolester]

The site hasn't been online for three days now, so I expect the worst.
Since it is my primary image hosting site, this means there are no images in my posts anymore.

[YYS4BOB]

It's happened before, hopefully it will rejuvenate. If not I'll start looking to replace important images on old posts with the new on-site method.

[Squid]

I always upload directly to the board. Much better that way, and not overly difficult.

[Diecastmolester]

It's back online and working - phew.
I rather link my photos to not burden the forum server, because I bet it costs more to run the more bytes are on there.