I didn't see this topic specifically addressed here: what's the current thinking on using content aggregation for SEO purposes?
I'll use flavors.me as an example. Flavors.me lets you set up a domain that pulls in content from a variety of services (Twitter, YouTube, Flickr, RSS, etc.). There's also a limited ability to publish unique content as well.
So let's say that we've got MyDomain.com set up, and most of the content is being drawn in from other services. So there's blog posts from WordPress.com, videos from YouTube, a photo gallery from Flickr, etc.
How would Google look at this scenario? Is MyDomain.com simply scraped content from the other (more authoritative) sources? Is the aggregated content perceived to "belong" to MyDomain.com or not? And most importantly, if you're aggregating a lot of content related to Topic X, will this content aggregation help MyDomain.com rank for Topic X?
Looking forward to the community's thoughts. Thanks!