This March I attended the ESRI DevSummit and picked up on the newest Open Data Portal.
Our County didn't have a Portal, so in 3 short weeks I created our Portal. I call it GeoDat.
We've had many positive remarks. Enjoy.
Jeff Utter GISP
County of Kern, CA
We have added many new feature to our Open Data Portal - Geodat, https://geodat-kernco.opendata.arcgis.com/
Check them out and please provide us feedback.