Generally useful Drupal contrib modules
These are the Drupal 7 modules I think are most generally useful on the majority of sites. If I was going to create a distribution that was "Drupal + Helpful Stuff," these modules would be in it.
installation profiles
How to Write a Drupal 7 Installation Profile
One of the features I'm most excited about in Drupal 7 is the greatly improved flexibility of installation profiles. However, documentation on writing an installation profile for Drupal 7 currently doesn't exist, so I thought I'd change that. Here's what I've discovered by reading through the code.
Installation profiles are like modules
