Silobreaker find out about the powerful | Top sites for journalists |
Great site for finding the contacts and stories about infulencial news makers. This could be an extremely useful tool for newsgathering and research.

This from the site "Silobreaker aggregates news, blogs, research, audio, video and other digital media content from global news, shared, user generated and open access sources around the world."

Recommended by @parvanapersiani