1. Sitecore-PowerCoreHelper cmdlets which can be used to create simple Sitecore website deployment script in something like 50 lines of code.
2. Sitecore-CourierSitecore Courier aims to fill the gap between the development and production environments when building websites with Sitecore CMS.
4. Sitecore-Mobile-Device-DetectorMobile Device Detector combines the power of 51degrees.mobi database for detecting mobile devices and flexibility of Rules Engine for determining appropriate Sitecore Device.