sexinthecensus.org
"The census has always asked “What is your sex”?
We believe that people should answer the census accurately and honestly.
We think that this is the best way to collect the information needed to understand the population and to plan and fund public services.
Counting the number of male and female citizens is vital for the census, and because the census sets the standard for other data-collection across society."
The website has a 3 stage action plan, a comprehensive set of FAQs, and a useful resources section that provides more background.
15 groups collaborated on this campaign and clicking on their logos on the home page takes you direct to the individual website of each organisation.
Hope some of you find it useful.