diff --git a/src/044-timers/timers.go b/src/044-timers/timers.go
index b5e3169..f87efe3 100644
--- a/src/044-timers/timers.go
+++ b/src/044-timers/timers.go
@@ -20,3 +20,5 @@ func main() {
     stop2 := timer2.Stop()
     fmt.Println("Timer 2 stopped:", stop2)
 }
+
+// todo: pull from blog post
diff --git a/src/045-tickers/tickers.go b/src/045-tickers/tickers.go
index da5613e..4e6fc5c 100644
--- a/src/045-tickers/tickers.go
+++ b/src/045-tickers/tickers.go
@@ -16,3 +16,5 @@ func main() {
     ticker.Stop()
     fmt.Println("Ticker stopped")
 }
+
+// todo: pull from blog post
diff --git a/src/049-sorting-by-functions/sorting-by-functions.go b/src/049-sorting-by-functions/sorting-by-functions.go
index 734327d..ebafaf3 100644
--- a/src/049-sorting-by-functions/sorting-by-functions.go
+++ b/src/049-sorting-by-functions/sorting-by-functions.go
@@ -50,3 +50,5 @@ func main() {
     sort.Sort(ByAge(kids))
     fmt.Println("ByAge:   ", kids)
 }
+
+// todo: pull from blog post