I recently signed up for a paid Micro.Blog account. Its address is MacsFuture.micro.blog. In terms of posting to it, I would like to use MarsEdit on the Mac as you can post to multiple blogs with that app and I could then post to this WordPress blog and also to the Micro.Bog account. So here is how to set up Mars Edit to post to your Micro.Blog account.
I figured out how to post to my Micro.Blog account through the MarsEdit app on the Mac. The key is to generate an app token on your Micro.Blog account and use that as your password in MarsEdit. Your Micro.Blog user name is the user name you put in Mars Edit. Pretty cool. Buried at the bottom of this Micro.Blog post is the information.