Please don't take this too seriously, since the sample size isn't terrifically large (but congrats to NTEN for getting so much data). As Jon pointed out, this is a self-reporting survey, so it is anything but random.
Here are the columns for all organizations irrespective of size (measured by budget):
| Count | Percent | |
| Other | 216 | 29% |
| Drupal | 114 | 15% |
| Plone | 62 | 8% |
| Joomla! | 59 | 8% |
| Convio_CMS | 52 | 7% |
| Antharia | 49 | 7% |
| Blackbaud | 47 | 6% |
| iMIS | 26 | 4% |
| Kintera_Sphere_CMS | 26 | 4% |
| ImpressCMS | 20 | 3% |
| WordPress | 18 | 2% |
| Ektron | 14 | 2% |
| Custom | 14 | 2% |
| XOOPS | 13 | 2% |
| Convio_PageBuilder | 12 | 2% |
| CrownPeak | 11 | 2% |
| TOTAL | 754 |
"Other" comes out clearly at the head of the pack with Drupal a distant second and Plone/Joomla! leading the peloton at 8%. Let's now look at the values for small organizations (budgets under $500K):
| Count | Percent | |
| Other | 43 | 21% |
| Drupal | 40 | 19% |
| Joomla! | 31 | 15% |
| Plone | 31 | 15% |
| Antharia | 16 | 8% |
| WordPress | 10 | 5% |
| XOOPS | 10 | 5% |
| ImpressCMS | 9 | 4% |
| Blackbaud | 4 | 2% |
| Convio_CMS | 2 | 1% |
| Custom | 2 | 1% |
| Kintera_Sphere_CMS | 2 | 1% |
| Convio_PageBuilder | 1 | 1% |
| CrownPeak | 0 | 0% |
| Ektron | 0 | 0% |
| iMIS | 0 | 0% |
| TOTAL | 210 |
"Other" is still on top with 21% and Drupal is still seated in second, but both Plone and Joomla! at 15% have pulled away from the peloton (<9%).
For large organizations we find:
| Count | Percent | |
| Other | 87 | 31% |
| Convio_CMS | 35 | 12% |
| Blackbaud | 26 | 9% |
| Drupal | 20 | 7% |
| iMIS | 14 | 5% |
| Plone | 13 | 5% |
| Antharia | 13 | 5% |
| Kintera_Sphere_CMS | 12 | 4% |
| Joomla! | 11 | 4% |
| Convio_PageBuilder | 9 | 3% |
| CrownPeak | 9 | 3% |
| Ektron | 7 | 3% |
| ImpressCMS | 6 | 2% |
| Custom | 4 | 1% |
| WordPress | 1 | 0% |
| XOOPS | 1 | 0% |
| TOTAL | 283 |
If one looks at medium-sized organizations (no need for another chart, trust me) ,"Other" once again tops the list with everyone else far below in the pack. Drupal is now fourth, Plone sixth, and Joomla! sinking to ninth.
What can we conclude from this? Here's the graph of all the data, including the medium-sized organizations:
Among large, well funded nonprofits, "other" (which may frequently mean home-built), far and away is reported more often that any of the other titles.At small nonprofits, "other" along with Plone, Drupal, and Joomla! fare roughly equally well.
In between, at medium-sized organizations, "other" and Drupal top the ranks.
Another way to look at this is to combine large and medium org percents (M+L) and compare that score against the small org number.
| M+L | Small minus M+L | ||
| Count | Percent | Percent | |
| Joomla! | 25 | 5% | 9% |
| Plone | 28 | 6% | 9% |
| Drupal | 65 | 14% | 5% |
| XOOPS | 1 | 0% | 5% |
| WordPress | 6 | 1% | 4% |
| Antharia | 23 | 5% | 3% |
| ImpressCMS | 11 | 2% | 2% |
| Custom | 10 | 2% | -1% |
| Convio_PageBuilder | 9 | 2% | -1% |
| CrownPeak | 10 | 2% | -2% |
| Ektron | 12 | 3% | -3% |
| Kintera_Sphere_CMS | 21 | 5% | -4% |
| iMIS | 24 | 5% | -5% |
| Blackbaud | 34 | 7% | -5% |
| Convio_CMS | 42 | 9% | -8% |
| Other | 142 | 31% | -10% |
| TOTAL | 463 |
Now Plone and Joomla! move to the top of the list, which is to say their numbers fell off most sharply as one moved from small to medium and large organizations. One might conclude that Plone and Joomla! are best suited for situations where there is little money to spare, whether for installation, licenses, training, customization, or IT in general. Drupal and "other" are then favored when there is a larger org with presumably more disposable income to spare on CMS.
But without a doubt, the biggest lesson from all this is that open source is very strong within the not-for-profit community.
