Daniel Burrows
[explains](http://algebraicthunk.net/~dburrows/blog/entry/howto-convert-your-blogger-or-blogspot-blog-to-ikiwiki/)
how to convert your Blogger/BlogSpot blog to ikiwiki.

François Marier used a [different approach](http://feeding.cloud.geek.nz/posts/moving-from-blogger-to-ikiwiki-and-branchable/) on a more recent version of Blogger.