An aggregator is a tool or software application that collects and consolidates digital content from various sources into a single location. Aggregators are used to reduce the time and effort needed to regularly check websites for updates, creating a unique information space or personal newspaper. There are different types of aggregators, including:

• News Aggregator: This type of aggregator collects news stories and articles from various sources and presents them in one place.

• Content Aggregator: This type of aggregator collects web content and applications from different online sources for reuse.

• Media Aggregator: This type of aggregator maintains subscriptions to feeds that contain audio or video media enclosures.

• Mortgage Aggregator: This type of aggregator purchases mortgages from financial institutions and then securitizes them into mortgage-backed securities (MBSs) for sale.

• Telecom Aggregator: This type of aggregator consolidates multiple disparate circuits or carrier services into an easy-to-use, easy-to-manage, single circuit.

Aggregators can be client software or web applications that retrieve and interpret syndicated content in the form of RSS or other XML-formatted data. They can also take the form of news tickers, alerters, web browser macro tools, or smaller components that can integrate feeds into the operating system or software applications. Aggregators are useful for individuals and businesses who want to stay up-to-date with the latest news and information from multiple sources without having to visit each source individually.