Here is a great online community for decision scientists especially the ones reading these posts. It is called Smart Data Collective and it is hosted at www.smartdatacollective.com
It works like a blog aggregator for specific topics and the quality of posts is quite nice. Just like your blogroll does for you and it can also help your blog, if you write to get some added views. Basically it works as a newpaper for data topics from featured posts by data bloggers. I joined it just over the year end , and was able to both write and read on nice topics.
