There are already too many of these services that don't interoperate with each other, or sources of data in an open way.

http://activitystrea.ms/ is a good first step in opening some of this stuff up for consumption.

The way it is now, each front-end service has to do a ton of work for each data source they want to integrate with. There should be services that translate data into a shared format. And then front-end services can focus on their idea instead of having to parse all the data.