Additional category: CAML

Here is a great posting by a fellow named "craig" on a technique for finding CAML definitions for field content types based off real live definitions from a site.

His posting says it all. In brief:

1. Create a content type.
2. Associate it with a list.
3. Open up the list with SharePoint Designer.
4. Export to a "personal web package".
5. Rename to a .cab.
6. Extract the manifest.
7. Find your content type and associated CAML.