diff --git a/UseCases.md b/UseCases.md
index b0b8201..2234245 100644
--- a/UseCases.md
+++ b/UseCases.md
@@ -1,6 +1,8 @@
+# Network Configurations
+
 There are several ways that people might want to use Tahoe.  We're not necessarily committed to satisfying all of these use cases -- these are just possibilities.
 
-Use Cases
+As these network configurations develop, the *node roles* section develops in complement.
 
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@@ -20,4 +22,35 @@ Use Cases
  * *global grid*: A large, diverse ecosystem of people and organizations who want a storage grid with extremely high reliability and availability.
 
 
+# Node Roles
+
+Network configurations can usually be thought of in terms of a topology connecting particular *node roles*.  These roles often fulfill the same abstraction across network configurations.  By allowing specialized role configurations, a plethora of custom network configurations can be deployed without modifying the code.
+
+Here are some archetypal roles:
+
+ * The *Available Migrator* consumes storage from a changing address.
+   * **Migration Pattern Availability** - Availability is high, but address changes are frequent.
+   * Examples: Laptops, mobile devices, poor DHCP configurations.
+   * Should this role supply storage?  If so, how does it affect average file availability?  -reliability?
+
+ * The *Ephemeral Consumer* consumes storage, but lacks availability.
+   * **Poor availability** - Availability is low, such as a node that is only up when consuming storage service.
+   * Examples: Backup service customer.
+   * Hints:
+     * Set *size limit* config option to 0.  (Is this a kludge currently?  -Nejucomo)
+
+ * A *Grid Storage Servant* provides storage but does not consume it.
+   * **High Availability** - An individual file's availability is largely dependent on average storage availability.
+   * **Remote Control** - Typically a provider configures many nodes through a centralized manner for convenience.
+   * **Non Consumer** - Specialized storage providers do not consume storage services.
+ 
+ * A *Grid Manager* does not provide storage services but controls storage servents.
+
+
+# Deployment
+
+## The Test Grid
+
+...  Put your experience with particular configurations here ...
+