Readers who love podcasts but are more interested in finding episodes on specific topics rather than subscribing to a show's entire archive may want to check out Listen Notes. Launched in 2017, Listen Notes is a web-based, stand-alone podcast search engine that allows users to conduct keyword searches for individual podcast episodes on any topic, and the results list can be toggled to show episodes or entire podcasts. After finding episodes on their topic of choice, visitors can then curate those episodes into playlists using the site's Listen Later feature, which they can listen to online or add to any podcast app via RSS feed. Listen Notes offers several other ways to discover podcasts as well: a real-time display of what other visitors are currently listening to, podcast playlists curated by other users, Listen Alerts that send daily email notifications of new podcast episodes containing a user's search terms, interviews with podcasters, and more. As of this write-up, the Listen Notes database contains more than 44 million episodes from over 665,000 podcasts. Listen Notes is designed, built, and maintained by Wenbin Fang, a computer engineer and "avid podcast listener" who lives in San Francisco.