I remember hearing a presentation by BuzzFeed's viral editor in 2009 on their approach to content as - mullet style - business in the front and party in the back. The site overall has a winning formula with its approach to content, community, aggregation and now it's adding content creation/breaking news to the mix.

It's hard to believe it has been four years since I covered the last Iowa Caucus online. 

Data visualizations, real-time updates via social media continue make for game-changing coverage of the First-In-The-Nation caucus event this time around. 

Real-time data maps of precinct results combined with social media updates offer great depth at a glance of where the results are in the night. 

Taking a quick cruise around some news sites -- The Des Moines Register's map, candidates and by-county results display is a great breakdown of data at a glance. The website for CBS affiliate KCCI.com (where I used to work) has a smart real-time LiveWire page that converges Facebook status updates, livestreaming video and auto-updating precinct results in one place. (Kind of a combination of Storify meets Cover It Live).

The New York Times has a great map display of county leaders and size of lead, a list of caucus results data list and Twitter updates of the race.

MSNBC.com's BreakingNews site has a hover-over map display of results by county and in list form.

Let's not forget curation. The Breaking News Iowa Caucus section has a good mix of updates posted from Twitter, YouTube and other sources.

Storyful has a nice roundup of updates throughout the day of photos of sample ballots, precincts and Twitpics, tweets and more.

Great roundups of real-time updates on Storify by PBS Newshour, and the Des Moines Register.

Again, this is just a quick look around news sites. Did I miss any notable online caucus coverage? Let me know in the comments.