Enable apps in AAM or host-header environments for SharePoint 2013 TechNet Article about a new Feature in March Update which allows to enable Alternative Access Mapping for Multi app Domains
March Cumulative Update Todd Klindt delivers Information and download link, also release numbers of previous Version. SharePoint Product Group helps to update High Availablity Environment and search components
SharePoint 2013: Intelligent Promoted Results and Best Bets MVP Wictor Wilen Shows howto use a RegEx and a custom page to promote results in Search. Display Template is modified in his example.
Using jQuery and jqplot in your display template to show a piechart refiner Jqplot is a jQuery Plugin which helps to create a pie Chart refiner. Murad Saeter has got the code to do it (also for Display template)
Business Intelligence Solution Builder Microsoft has released a new site which delivers a Matrix for BI. It helps to figure out which capabilities are part of which product