Recently, Google launched Google Insights. Like with Google Trends, you can just type in a search term to see search volume patterns over time, as well as the top related and rising searches. You’ll also have the ability to compare search volume trends across multiple search terms, categories (commonly referred to as verticals), geographic regions, or specific time ranges. Great for marketing people.

Below are some examples specific to Drupal ...

Google insights search volume world
The numbers on the graph reflect how many searches have been done for a particular term, relative to the total number of searches done on Google over time. See Google Insights results for Drupal.
Google insights search volume china
In China, Wordpress is winning hands down. See Google Insights results for Drupal.
Google insights search volume belgium
In my home country, Belgium, Drupal is almost as strong as Wordpress but not nearly as strong as Joomla. See Google Insights results for Drupal.
Google insights regional interest country
Regional Drupal interest by country. Google uses the term 'search volume index' for these heatmaps, meaning that they normalized the data by the total traffic from each respective region. In other words, just because two regions show the same percentage for a particular term doesn't mean that their absolute search volumes are the same. See Google Insights results for Drupal.
Google insights regional interest usa
In the US, the west coast beats the east coast. Based on 'search volume index'. See Google Insights results for Drupal.
Google insights regional interest city
Regional Drupal interest by city. Based on 'search volume index'. See Google Insights results for Drupal.
Google insights search terms
The top search on Drupal -- great for marketing people. Breakout means that the search term has experienced a change in growth greater than 5000%. See Google Insights results for Drupal.

Comments

Alexander Lang… (not verified):

Funny that the first I did when Insights was launched was looking after Drupal, Joomla, Typo3 and Wordpress, but narrowing it down to Germany. I found it very interesting and shared it with other Drupal fans on drupalcenter.de.

Search Insights is such a great tool, almost addictive...

s.Daniel (not verified):

In Germany Typo3 is still the most important CMS but according to the stats Drupal is growing and growing and could have more searches than typo3 within one or two years.

January 2007 Typo3 had 8,6 times the search volume of Drupal
January 2008 only 4x
Now its 2,9 times...

yaph (not verified):

Due to Drupal's flexibility it is well suited for a wide variety of purposes. WordPress on the other hand is typically used for blogs, because it is optimized for that type of website, though it can be extended with plugins to do more sophisticated stuff.

I see Joomla somewhere in between Drupal and Wordpress. It comes with more features than WordPress but is less suitable for complex web apps than Drupal due to Joomla's more restrictive software architecture.

The point is, there is a larger number of simple websites, such as blogs, company homepages etc. than complex web applications. So to convince many people to also use Drupal for simple types of sites the usability needs to be improved and image management has to become a core feature.

Cary Gordon (not verified):

A British developemnt company called Water & Stone has used this data in a market survey -- http://www.waterandstone.com/downloads/2008OpenSourceCMSMarketSurvey.pdf

The survey seems to mostly be a tribute to Joomla marketing and WordPress ubiquity, but they do note Drupal's numerous awards and the relatively large number of Drupal books, as well as the gap between the top three FOSS CMS platforms and the rest. What they didn't seem to grasp were the reasons behind those phenomena, specifically Drupal's appeal to and support of developers.

On one hand this is testimony to the promotional efforts of you, the community and Acquia. Interestingly and encouragingly, there was an Acquia ad right in the middle of the Hiveminds page where I found this report.

Alan Doucette (not verified):

As with all statistics, when reading this I tried to put it into context and realized something about my own habits, that if it is like anyone else's, probably affects these stats heavily.

When I am looking for information on something, Google is usually is the first place I look. This just as true for open source project information as it is anything else.

However, in the specific case of Drupal, I always start at Drupal.org first and only go to Google when I can not find what I need. If I need a module or theme, I go directly to the Drupal download pages. If I need some info on an API or have a support question, I go to A.D.O or the handbook.

With other open source projects, including Joomla and Wordpress, their collection of information, extensions, and community are much more spread out across the web and so I often either start at Google or I much more quickly end up going to Google after looking at their site.

In recalling my own search history, I can remember only very few instances I have typed the word "Drupal" into Google. If there are many others that are like this, it may be a contextual factor in these results.

yaph (not verified):

Interesting point. When searching for a Drupal module, for example, I use drupal.org's advanced search and restrict the search to content of the type project, knowing that almost all existing Drupal module projects are hosted on drupal.org. The situation is different with WordPress and Joomla.

On the other hand this is not necessarily the way new Drupal users search for information about Drupal, because they may not know that there is an advanced search or that there is a site like GDO. So in this regard it is also a matter of user experience, where you search for what information.

Tristan (not verified):

One thing I've noticed about Joomla, is that they've been able to collaborate with more webhosts to provide it as an "easy install", along with WordPress. The two hosts I deal with regularly are only now getting ready to offer Drupal. That to me seems like a pretty huge deal, since people with web hosts are people with web sites.

As a side note. I'm relatively new to Drupal & Joomla. I recently did some research on which to use for a site I'm now building, and I ended up having to do many more searches for Joomla related information to get the answers I needed, mainly because what I needed didn't really exist for Joomla. So I went with Drupal.