diff --git a/gnu/usr.bin/send-pr/send-pr.1 b/gnu/usr.bin/send-pr/send-pr.1
index aa356e02907..5df0ed37e95 100644
--- a/gnu/usr.bin/send-pr/send-pr.1
+++ b/gnu/usr.bin/send-pr/send-pr.1
@@ -180,8 +180,10 @@ support site.
 .SH FREEBSD CATEGORIES
 .TP
 .B advocacy
-This used to be for the advocacy WWW pages.  Not quite sure what is used
-for now.
+This used to be for the advocacy WWW pages.
+Now deprecated in favour of the
+.B www
+category, relevant alternative use of this category is encouraged.
 .TP
 .B alpha
 Alpha processor specific problems.
@@ -214,7 +216,7 @@ Problems related to Java.
 Changes or enhancements to the architecture independent kernel sources.
 .TP
 .B misc
-Problems that don't fit into any of the other categories.
+Problems that do not fit into any of the other categories.
 .TP
 .B ports
 Corrections or enhancements (including new ports) to the ports collection.
@@ -228,6 +230,12 @@ SPARC processor specific problems.
 .B standards
 Standards conformance issues.
 .TP
+.B threads
+Problems related to threading on FreeBSD.
+.TP
+.B usb
+Problems related to the USB subsystem.
+.TP
 .B www
 Changes or enhancements to the FreeBSD website.
 .SH ENVIRONMENT