diff --git a/Dev.md b/Dev.md
index 13b60e9..6d83652 100644
--- a/Dev.md
+++ b/Dev.md
@@ -19,8 +19,8 @@ Views into the process of Tahoe-LAFS hackery.
 ## Extensions
 
  * Tahoe-LAFS has a programmatic API which enables building custom applications on top of the storage infrastructure.
- * The [docs/frontends/webapi.txt]source:docs/frontends/webapi.txt document shows how to control a Tahoe-LAFS node programmatically.
- * [The Extension Page](Extensions) lists extension projects and extension development resources. (WAIT: How is this different from the [RelatedProjects](RelatedProjects) page? --Zooko 2010-06-16)
+ * The source:docs/frontends/webapi.rst document shows how to control a Tahoe-LAFS node programmatically over HTTP.
+ * [The Extension Page](Extensions) has some additional tips on how to use the web-API.
 
 ## Developer Docs
  * [the docs/ directory]source:docs/ <-- most core doc is in the source tree here