long SourceId
string SourceName
string SourceUrl

XML

<PhotoSource>
    <SourceId>936</SourceId>
    <SourceName>Plixi Dev</SourceName>
    <SourceUrl>http://dev.plixi.com </SourceUrl>
</PhotoSource>

JSON

{
   "SourceId":936,
   "SourceName":"Plixi Dev",
   "SourceUrl":"http:\/\/dev.plixi.com"
}