'Tech for Teens' - FreshBrain
No official release for a few months yet, but I am impressed with their initial efforts: freshbrain.org.... and, yes, it's on Solaris and Sun hardware, and it will be expected to grow and scale, and it may well be a proving ground for some of my upcoming Drupal-on-Sun work...
... but I've already turned my 11-year-old techie onto it, and she can't wait for the full site rollout :)
