Use "aggregator" in a sentence

1. things going for it as a news aggregator, but the community

2. com was a news aggregator that operated along the same lines as Google alerts, but with news stories

3. Buster Olney, author of How Lucky Can You Be, ends each of his aggregator baseball blog posts with

4. Generally speaking, these four conditions are present in market-based price auctions, with the final price of a stock serving as an aggregator of all market opinion about the prospects for that stock