Back in 2005 I saw that a new open standard was being developed for calendaring, and I thought it would be a great idea to implement it. Nothing too complicated - just a really simple implementation...

And thus was born the "Really Simple CalDAV Store".

A few years later, when I got about 90% of the way through implementing the base CalDAV specification, I realised that "Really Simple" and "Calendar" don't actually happen in the universe we inhabit, so after much deliberation the project got renamed to "DAViCal".

Now, in 2012, DAViCal is one of the leading CalDAV servers available, and I spend quite a lot of my time helping people who want to use it. Earlier in the year I was looking at the web server logs and noticed that in a four week period (i.e. as far as my logs go back) there had been several thousand unique sources of hits on the URL that DAViCal uses internally to find out what the latest version is when you browse to the '/setup.php' page.

This got me wondering how many DAViCal installations there are out there, and how big they might be, and so forth but since DAViCal is free open source software, there isn't a simple way to answer those questions.

I thought that it must be time to run a survey of DAViCal users everywhere to try and find out what the scale of the penetration is. How big (and how small) are the installations running DAViCal? What... Well: lets save the questions for the actual place where you can put answers :-)

So click here and take the survey right now... you know you want to :-)