Hi! I looked into this a year or two ago, so things have changed a lot. So many services have gone up then gone down, whether open source, commercial…
We looked a little outside the box for things like educational data analysis tools, etc – a bit eclectic of a list, but for what it’s worth: 🎈 Public Lab: Environmental data management & analysis tools
I’d love to know what people think about these options you’ve mentioned; we didn’t review them. Always interested in thinking about long-term sustainability of these services.