Facebook shows us one way to mash all of this together, but it doesn't have the industry focus, legal regulations, or corporate learned behaviors. Every application has content and information management. ECM might still be on the bottom system layer, filling in the cracks, but it's purpose has changed. It is either focused on specific industry solutions, or acting as a change agent to sweep up the final paper processes. Whether it will be used in the long term doesn't really matter. What matters is that it still has an important role in IT.
We all content manage
We all move information
Our end goal is efficiency
Helping communication along the way
Yet truth struggles with greed