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@@ -778,7 +778,7 @@ Additional benefits include:
   <i><a href=http://lethain.com/introduction-to-architecting-systems-for-scale/#platform_layer>Source: Intro to architecting systems for scale</a></i>
 </p>
 
-Separating out the web layer from the application layer (also known as platform layer) allows you to scale and configure both layers independently.  Adding a new API results in adding application servers without necessarily adding additional web servers.  The **single responsibility principle** advocates for small and autonomous services that work together.  Small teams with small services can plan more aggressively for rapid growth.
+Separating out the web layer from the application layer (also known as platform layer) allows you to scale and configure both layers independently.  Adding new APIs results in adding application servers without necessarily adding additional web servers.  The **single responsibility principle** advocates for small and autonomous services that work together.  Small teams with small services can plan more aggressively for rapid growth.
 
 Workers in the application layer also help enable [asynchronism](#asynchronism).