Shovewatch, is a part of ProPublica, an independent, non-profit newsroom that produces investigative journalism in the public interest. Shovelwatch tracks the stimulus bill where the money meets the actual project.

This is a good resource for tracking potential opportunities in your market.

Washington Technology offers multiple publications covering a broad variety of topics of interest to government contractors across a variety of industries.Their annual Top 100 Federal Prime Contractors and Fast 50 Government Contrctors are two of their highly popular reports that keep the industry abuzz.

You can follow them on twitter to be alerted to most of the top stories: http://twitter.com/washtechnology

They also offer targeted RSS feeds: List of News Feeds