Peer-reviewed research journals
	Science (USA)
	Nature	(UK)
	JAMA (Journal of the American Medical Association)
	Lancet (UK medical assoc.)
	Operations Research
	Management Science
	Technometrics (statistics)
	Queueing Systems: Theory and Applications

Monographs (research books on a single subject)
	most common publisher: Springer

Preprints/working papers/tech reports
	arxiv.org
	author's web sites
		sometimes have copies of peer-reviewed articles,
		be careful about those vs. working papers.
	departmental tech. report sites
	Citeseer.ist.psu.edu

Peer-reviewed expository journals
	College Math Journal
	Chance

Professional Society membership magazines
	OR/MS Today
	MAA Focus
	Amstat News
	SIAM News
	IEEE Spectrum
	AMS NewsNotes
	AMATYC News
	NCTM

White papers
	Research-y, but usually published by a company 
	to tell you how great their product is.

Trade Publications
	Call Center Magazine

Popular Press
	Scientific American
	Popular Science
	New York Times
	Wall Street Journal
	Discovery

Goverment reports

Other web sites:
	Wikipedia
	mathworld.wolfram.com
	science museums
	educational science sites
		(often sponsored by the NSF, look for their logo)
	company sites: nwa.com, united.com, verizonwireless.com, etc.