diff --git a/README.md b/README.md
index b34fdb7..227ceb7 100644
--- a/README.md
+++ b/README.md
@@ -621,6 +621,7 @@ comprehensive and high-level, you may want the Web Frameworks section.
 * [CHL][422] - C Hypertext Library - A library for writing web applications in
   C. [``GPL-3.0-only``][GPL-3.0-only]
 * [czmq][226] - High-level binding for ZeroMQ. [``MPL-2.0``][MPL-2.0]
+* [Dyad.c][554] - Lightweight, easy, asynchronous networking library. [``MIT``][MIT]
 * [GNU adns][155] - Advanced, easy-to-use, asynch-capable DNS client library
   and utilities. [``GPL-3.0-or-later``][GPL-3.0-or-later]
 * [gumbo-parser][196] - HTML5 parsing library in C99.
@@ -757,6 +758,7 @@ comprehensive and high-level, you may want the Web Frameworks section.
 * [tpl][473] - Small binary serialization library. [``MIT``][MIT]
 * [xdr][131] - External Data Representation; a standard for data
   serialization. Standard (no license applicable).
+* [pbtools][555] - Google Protocol Buffers C source code generator. [``MIT``][MIT]
 
 ## Source Code Collections ##
 
@@ -1664,4 +1666,6 @@ support for C.
 [551]: https://github.com/mysql/mysql-server
 [552]: https://github.com/hexspeakerg/ONLY_ONCE
 [553]: https://github.com/okuvshynov/b63
+[554]: https://github.com/rxi/dyad
+[555]: https://github.com/eerimoq/pbtools
 [556]: https://wiki.videolan.org/LibVLC