AWS Elastic Load Balancers (ELB) offer improved monitoring capabilities with the introduction of three new metrics: BackendConnectionErrors, SurgeQueueLength, and SpilloverCount. These metrics provide insights into the load balancer's performance, such as connection errors, queue length, and spill-over requests. To effectively monitor ELB, it is essential to understand how these metrics interact and use them in conjunction with other metrics like RequestCount, HTTPCode_ELB_5XX, HealthyHostCount, Latency, and HTTPCode_backend_yXX. The new metrics should be used to identify issues such as too many inbound requests, latency, or server misbehavior, allowing for prompt action to be taken to improve the load balancer's performance and prevent frustrated customers.