To get an idea of what Scratch4Opensim can do there is this nice tutorial on Youtube to watch. In 9 minutes Avasari Buninyong shows the possibilities of Scratch4Opensim on a simple way.
New edition?Now you might think this is old news, but this summer (2011) some clever guys will work on a new version called Scratch3D. I think this will be an online version, made in Flash, where the old Scatch4Opensim version will be integrated. More info about this can be found at http://roots.greenbush.us/3/wordpress/?p=1368
Any more scripting sites?
- At http://labs.greenbush.us/scriptastic/ you can find a page where you can create scripts, simple building with blocks like in Scratch.
- At http://www.3greeneggs.com/autoscript/ you can find another text based scripting machine that is really fun to work with.
- And also have a look at http://foravatars.com/sandbox/lsl/