Facts about Globalization, Satellite assemblies, localization:

1.    Adding App_LocalResources folder to the application does not create separate Dlls with repect to the 

       culture.
2.    If we not have UICulture="auto" set in the page directive, it will not display the culture specific UI.

3.    We can also set the culture at global level in web.config in <globalization> element under

       <System.web> element.
4.    We can have multiple App_LocalResources folder under different child folders. However we can have

       only one App_GlobalResource folder.
5.    Local resource is specific to a single Web page and used for providing versions of a Web page in

       different languages.

6.    Local resources must be stored in App_LocalResources sub folder.

7.    Local resources must be named in format <WebPageName> [.language / language and culture].resx.

8.    Ex: Default.aspx.resx- Base resource file. This is the default, or fallback, resource file. This is must

       have. e.g: Default.aspx.fr.resx- A resource file for French etc.

9.    Global resource can be read from any page or code that is in the application.

10.  Global resource must be stored in App_GlobalResources at the root of the application.

11.  Namespace used: System.Globalization; System.Resources; System.Threading

12.  The difference between resource-only and satellite assemblies is that resource-only assemblies can

      contain any resource, such as images and text. Satellite assemblies contain only culture-specific

      resources.

I will try to look for more if time permits, till then cheeers :)