Towards A Common Blog Export Format
In general I find it a lot easier to put my data somewhere that I know I will be able to get it out again. This applies especially for web applications hosted by third-parties, where export facilities are a must before I'll even look at it, but I believe it is generally a good practice.
Hence the motivation for a common interchange format for blog content. This is an escape hatch, if you will, for migration to an unspecified future blogging platform.
Admittedly my recent migration from Wordpress to Typo was pretty easy, so in that that particular instance the lack of a common content exchange format was not a problem. But it certainly is a problem in general. And the less time blog software authors spend on writing importers for all the other blogging engines around the place, the more time they will have to concentrate on features. That sounds like a good thing to me.
It turns out that a content interchange format can be created using some simple conventions over and extensions of the Atom syndication format. I've written these up as a proposal for anyone and everyone to comment upon. Please read the ObDisclaimer at the start and let me know your comments.
Enjoy Content Export with Atom.