On the 1st February this year, JanRain decided to shut down the myOpenID service which I'd been using up until recently for logging into OpenID-enabled sites such as Stack Overflow and others using my own domain. Because of this, I've now switched to using my Google apps account to replace myOpenID.

Last weekend I found myself needing to make use of the Google Spreadsheet API using a service account to manage spreadsheets belonging to users of a Google Apps domain from within a .NET application.