I have now been using Silverstripe for a while, and have been able to complete a number of sites using it,
and I find that along side the frameworks ability to add custom capabilities quickly, the module feature is among the most important.
Unfortunately the module listing under the extensions section of the site is in many cases out of date, and only even lists a portion of the modules available (if you really search around).
I know of projects at githhub, google code, and from developers own svn's . It would be a GREAT BENEFIT to the project to have an integrated listing of 'all' these resources, whether or not they are hosted by silverstripe.org, officially supported etc..
maybe there is space for a 3rd party site to make this a feature??
just my 2 cents.