Heroku Kafka
I love Heroku and everything they are doing, it's doubtless a push forward for the web as a whole. However, the pricing for hobby sites (including SSL) is crazy from a personal point of view so I'm slowly moving my projects out of it [1][2]. I wish they had some kind of "Hobby Bundle".[1] http://umbrellajs.com/
[2] http://picnicss.com/