Is it possible to add new data? Like connecting an Open Data portal or something similar and get notified if new data is added/updated?
CKAN is currently the de-facto standard for these kind of portals, so being able to query the CKAN Action API enables to gather metadata from portals all over the world.
Some portals even have an API directly to their primary data (e.g. exposing a CSV as a querable JSON REST API), in CKAN this is called "DataStore". And this kind of data might be something you want to integrate. I can think of a number of datasets that could be interesting, e.g. schedule of garbage collection, public transport timetable or measurements from public weather stations.
Different portals have different data available. I'm from Switzerland and I know these datasets are available here. Is there a geograhical region you want to cover/not cover or it doesn't matter?
Actually, we want to add what our users/clients want. No region in mind.
As a side note, its quite easy to create alerts about "new item in the data set" but it get worse if you have to understand the use case, as, e.g. sending all the "garbage collection schedule items" its different than sending "garbage collection new items in that street of Geneva". Hopefully the CKAN spec will allow us to let the users to set a query over the data, so we will be able to push them only when the new data matches that query.
Thanks again!