Sharepoint 2013 Client, Starting to work with it.

Link to getting started with the Object Model Client :

http://msdn.microsoft.com/en-us/library/office/fp179912.aspx

How to: Complete basic operations using JavaScript library code in SharePoint 2013

http://msdn.microsoft.com/en-us/library/office/jj163201.aspx

How to upload a document, two variations, one a simple, the other uses WEBDAV, which may be more appropriate, need to check this.

http://stackoverflow.com/questions/9847935/upload-a-document-to-a-sharepoint-list-from-client-side-object-model