On Instagram, “sps” commonly signifies “shoutout for shoutout.” This is a practice where users agree to promote each other’s accounts, typically by featuring the other’s profile in a post or story. For example, an individual might post a picture of another user and encourage their followers to check out that user’s account, expecting the favor to be returned.
The practice serves to increase visibility and attract new followers to both accounts. By tapping into each other’s existing audiences, users can strategically expand their reach and grow their presence on the platform. Historically, “shoutout for shoutout” was a prevalent organic growth method, especially before the widespread adoption of paid advertising and sophisticated algorithmic changes that prioritize specific content types.