Where do you store images for asp.net mvc projects and how do you reference them from site.master

What I generally do is create an "Images" folder inside my Content folder. Where you place your images is really up to you, as long as you are consistent.

Referencing these images from your Site.Master is the same as if you referenced it from any view:

<img src="/Content/Images/mylogo.png" />

<img src="@Url.Content("~/Content/Images/logo.png")" />

Using this in a Razor view on MVC 5. Images are stored in /Content/Images.

<%=Html.Image("~/Content/Images/xxx.png")%>

This resolves from wherever you are in the site hierarchy. Html.Image is a part of the the Microsoft.Web.Mvc futures assembly.

or in mvc2:

<img src="<%: Url.Content("~/Images2/landingMain/safety.png") %>" alt="safety" />