Cloud 66 staff write about deploying and running Docker and Kubernetes in production, along with web performance and security topics.
HN links it for guides to running Docker in production and for company security notices, such as its incident response and Heartbleed updates.
Both of the cloud providers are great (AWS and DigitalOcean) - but all depends on what are you are going to use it for. DigitalOcean offers better value for money and is focusing more on developers who have smaller projects in hand, but AWS (although more pricey), will give you more additional features with the support for infrastructure.
If you are concerned about infrastructure why don't you check out www.cloud66.com. You might find it very helpful also you can have a look at the help page with the node.js migration to any cloud provider http://blog.cloud66.com/moving-your-nodejitsu-apps-to-cloud-66/. (Disclaimer: I am working for Cloud 66)
This is a great article and breaks down the components needed to run Docker in production on your own servers. We have been doing that in Cloud 66 - http://www.cloud66.com/ (on 8 cloud providers including AWS) for a while and it's been a great experience: http://blog.cloud66.com/docker-in-production-from-a-to-z/
Most if, not all, competitors have already pushed their fix (eg http://blog.cloud66.com/security-vulnerability-cve-2014-0160-heartbleed/). Ouch, 3 hours to go for the next update, ie not a fix.
Actually you get to choose what sizes you want (whichever cloud provider you choose). See here: http://blog.cloud66.com/post/39922150128/custom-server-sizes-are-here
Looks like there was a security incident 2 days ago and now they believe that the problem is a data leak and not poor application security: http://blog.cloud66.com/
This came up from a quick google search https://blog.cloud66.com/supercharging-nginx-with-lua-part-3/