| ActivityQuery | Describes a query for the feed containing descriptions of all activity within a site. |
| ContentQuery | Describes a query for the feed containing the current, editable site content. |
| SiteQuery | Describes a query for the feed containing descriptions of a user's sites. |
| SitesService | Extends the basic MediaService abstraction to define a service that
is preconfigured for access to the Google Sites Data API. |
| SitesService.Versions | GData versions supported by the Google Sites Data API. |