Sparkfun launched a free cloud data service for your devices. It’s limited (rolling last 50MB) but also open source so if you want to roll your own you can do as much as you want!
This is an example of how doing a service and open source can benefit you. As they say
Our hope is that you buy a SparkFun widget to connect your next beehive.
It looks easy to use, and besides making it easy to put your own sensor data up, data from all other users is public, making it available to data scientists and hobbyists.
I’m looking forward to trying it out, and if I do I’ll share here!