Ability to Follow Users in the Marketo Community

I would like the ability to follow specific users in the Marketo community and aggregate their activity into one consolidated stream.  The concept of Following or Subscribing to another person is a core concept to the notion of an online community - I beleive this would help to improve user adoption of the Marketo community and give users quicker access to topics & discussions that are pertinent to them or ones that they may have otherwise missed.

I'd love to see an Icon with a Number of recent updates that I need to look at as soon as I log in.