Geta Tags is library that adds tagging functionality to EPiServer Pages.
Start by installing NuGet package (use EPiServer NuGet):
Install-Package Geta.Tags
The latest version 1.0.0 is compiled for .NET 4.0 and EPiServer 7.5. Geta Tags library uses tag-it jQuery UI plugin for selecting tags. To add Tags as a new property to your page types you need to use the UIHint attribute like in this example:
[UIHint("Tags")]
public virtual string Tags { get; set; }
For an introduction see: [Tags for EPiServer CMS] (http://www.frederikvig.com/2011/07/tags-for-episerver-cms/) and [Tags version 0.2 released for EPiServer CMS] (http://www.frederikvig.com/2011/09/tags-version-0-2-released-for-episerver-cms/).