diff --git a/tracing/README.md b/tracing/README.md
index af7f6aa2a6..4a8a85d2dd 100644
--- a/tracing/README.md
+++ b/tracing/README.md
@@ -390,6 +390,10 @@ maintained by the `tokio` project. These include:
 - [`diesel-tracing`] provides integration with [`diesel`] database connections.
 - [`tracing-tracy`] provides a way to collect [Tracy] profiles in instrumented
   applications.
+- [`tracing-elastic-apm`] provides a layer for reporting traces to [Elastic APM].
+- [`tracing-etw`] provides a layer for emitting Windows [ETW] events.
+- [`tracing-fluent-assertions`] provides a fluent assertions-style testing
+  framework for validating the behavior of `tracing` spans.
 
 If you're the maintainer of a `tracing` ecosystem crate not listed above,
 please let us know! We'd love to add your project to the list!
@@ -410,6 +414,11 @@ please let us know! We'd love to add your project to the list!
 [`diesel-tracing`]: https://crates.io/crates/diesel-tracing
 [`tracing-tracy`]: https://crates.io/crates/tracing-tracy
 [Tracy]: https://github.com/wolfpld/tracy
+[`tracing-elastic-apm`]: https://crates.io/crates/tracing-elastic-apm
+[Elastic APM]: https://www.elastic.co/apm
+[`tracing-etw`]: https://github.com/microsoft/tracing-etw
+[ETW]: https://docs.microsoft.com/en-us/windows/win32/etw/about-event-tracing
+[`tracing-fluent-assertions`]: https://crates.io/crates/tracing-fluent-assertions
 
 **Note:** that some of the ecosystem crates are currently unreleased and
 undergoing active development. They may be less stable than `tracing` and
diff --git a/tracing/src/lib.rs b/tracing/src/lib.rs
index c6e6fbe8fc..e8d0ed5ef9 100644
--- a/tracing/src/lib.rs
+++ b/tracing/src/lib.rs
@@ -739,6 +739,8 @@
 //!    applications.
 //!  - [`tracing-elastic-apm`] provides a layer for reporting traces to [Elastic APM].
 //!  - [`tracing-etw`] provides a layer for emitting Windows [ETW] events.
+//!  - [`tracing-fluent-assertions`] provides a fluent assertions-style testing
+//!    framework for validating the behavior of `tracing` spans.
 //!
 //! If you're the maintainer of a `tracing` ecosystem crate not listed above,
 //! please let us know! We'd love to add your project to the list!
@@ -765,10 +767,7 @@
 //! [`diesel-tracing`]: https://crates.io/crates/diesel-tracing
 //! [`tracing-tracy`]: https://crates.io/crates/tracing-tracy
 //! [Tracy]: https://github.com/wolfpld/tracy
-//! [`tracing-elastic-apm`]: https://crates.io/crates/tracing-elastic-apm
-//! [Elastic APM]: https://www.elastic.co/apm
-//! [`tracing-etw`]: https://github.com/microsoft/tracing-etw
-//! [ETW]: https://docs.microsoft.com/en-us/windows/win32/etw/about-event-tracing
+//! [`tracing-fluent-assertions`]: https://crates.io/crates/tracing-fluent-assertions
 //!
 //! <pre class="ignore" style="white-space:normal;font:inherit;">
 //!     <strong>Note</strong>: Some of these ecosystem crates are currently