| Block | Represents an abstract block. | 
| FeedBlock | Represents a Feed Block asset. | 
| File | Represents a file asset. | 
| Folder | Represents a folder asset | 
| FolderContainedAsset | Describes the common properties that any asset contained
 within a folder shares. | 
| Format | Represents an abstract Format. | 
| IndexBlock | Represents an index block asset. | 
| MetadataAwareAsset | Identifies that an asset is capable of carrying metadata. | 
| Page | Represents a page asset. | 
| PublishableAsset | Represents an asset that is able to be published. | 
| Reference | Represents a Reference asset. | 
| ScriptFormat | Represents a ScriptFormat. | 
| StructuredDataCapableAsset | Identifies that an asset is capable of structured data. | 
| Symlink | Represents a symlink (external link) asset. | 
| Template | Represents a Template Asset. | 
| TextBlock | Represents a text block asset. | 
| TwitterFeedBlock | Represents a TwitterFeedBlock asset. | 
| XHTMLDataDefinitionBlock | Represents a XHTML/Data Definition Block asset. | 
| XMLBlock | Represents an XMLBlock asset. | 
| XSLTFormat | Represents an XSLTFormat asset. |