[andrefuchs]

Posterous introduced this 'Post by Email' concept. Really loved the simplicity of it.

https://en.m.wikipedia.org/wiki/Posterous

[throwawaaarrgh]

I'm sure others allowed posting by email before. BrightKite was a fantastic social network that was location-based, and you could post via email. My friends and I still miss it... https://en.m.wikipedia.org/wiki/Brightkite

[gala8y]

Wordpress had/has this capability, too.

[arbuge]

I tried something along those lines a few years ago… https://publicemails.com

[r0s]

I absolutely loved Posterous, major shame it was squashed after being bought(?).

[dochne]

MSN Spaces had this feature back in 2006! Makes me feel nostalgic!

[starkparker]

Oh man, the nostalgia I just had. I used a Peek to post to Posterous.