MisinformedDNA 

ELMAH with configuration for getting started quickly on Azure Table Storage as the error log.

The simplest and most flexible client library for using SmartyStreets.Net.

Adds ASP.NET Core Configuration capabilities to Azure Functions

A few Ruby and Rails-like extension methods for .NET

When adding settings for ASP.NET Core, you can use this to request config files on the web.

Like FileSystemWatcher except you control when the state is checked. This allows it to work well for scheduled tasks instead of relying on continuous jobs.