Added SocketServer and mailbox modules.
diff --git a/Doc/lib/libwww.tex b/Doc/lib/libwww.tex
index 93bce63..c072725 100644
--- a/Doc/lib/libwww.tex
+++ b/Doc/lib/libwww.tex
@@ -74,4 +74,10 @@
 \item[quopri]
 --- Encode/decode binary files using the MIME quoted-printable encoding.
 
+\item[SocketServer]
+--- A framework for network servers.
+
+\item[mailbox]
+--- Read various mailbox formats.
+
 \end{description}