This is an example Umbraco CMS that is utilising Linq To Examine to perform searches and gather content faster.
You can download the repo and run the project in Visual Studio 2012+.
The credentials for the umbraco backoffice is:
Username: admin
Password: qwer1234
The source code for LinqToExamine is available here: https://github.com/base33/umbraco.examine.linq