A new report for The Chicago Community Trust analyzes news flows in Chicago and provides a thought-provoking analysis of the city's emerging news ecosystem and the roles of key information providers and sharers. It also shows the potential power of Web savvy community news start ups and nontraditional information providers as a new news environment takes shape. In the national, often web-ideology-driven, debate about value on the Web, news aggregators often take a big hit as parasites on organizations doing the expensive work of actually producing original content. Any aggregator who takes advantage - by stealing significant chunks of material from other sites and/or by failing to credit and link back to the original - deserve our disdain and more. After all, content producers (many of whom are professional journalists) need a paycheck just like the rest of us. But the aggregators who play fair deserve another look. At least on the ground on the local news start up scene, where I spend most of my time, aggregators have a valuable role to play in an increasingly diffuse news ecosystem. In a world where news is abundant but traditional bundles are dissolving, smart curation (which we used to call editing) and thoughtful selection and outbound linking is a service that stands alongside creating content. Right now, it is vital both to information consumers as well as producers, including many journalists who are desperately trying to get their work in front of people now that corporate-owned news organizations have shed them by the thousands. Nowhere is this more apparent than in my home base, Chicago, where feisty news start ups like Gapers Block, Windy Citizen and dozens of others, frequently link to the best content on other, lesser known sites. As Andrew Huff, editor and publisher of Gapers Block told me this week in an e-mail: "Having grown out of the weblog community rather than the traditional media community, we've had a philosophy from the beginning that linking is the coin of the realm on the web. We link to other websites because that's what makes the Internet work -- if you can't trust your readers to come back to you after...