SignalR can be used to add any sort of "real-time" web functionality to your ASP.NET application. Any time a user refreshes a web page to see new data, or the page implements long polling to retrieve new data, it is a candidate for using SignalR. Examples include dashboards and monitoring applications, collaborative applications (such as simultaneous editing of documents), job progress updates, and real-time forms.
SignalR also enables completely new types of web applications that require high frequency updates from the server, for example, real-time gaming.
SignalR also enables completely new types of web applications that require high frequency updates from the server, for example, real-time gaming.