Which type of websites aggregate MLS data to help potential buyers search for homes?

The selection of broker referral networks as the answer is appropriate because these platforms often facilitate connections between real estate professionals and potential clients, offering access to multiple listings, including those from various MLS (Multiple Listing Service) databases. This aggregation allows users to search for homes more efficiently by providing a centralized location for properties listed by different brokers.

Broker referral networks can showcase properties from various MLS sources, making it easier for buyers to find homes that meet their criteria without having to visit multiple individual broker websites. This functionality enhances the user experience and provides a more comprehensive view of the market.

In contrast, social media platforms primarily focus on networking and engagement rather than compiling MLS data for home searches. Real estate auction websites specifically deal with properties that are up for auction and may not provide a broad range of listings available through MLS. Property listing services serve a different purpose; while they may display listings, they often do not aggregate data across multiple MLS like broker referral networks do, which is critical for an efficient home search.