For foreign sources: THE GUARDIAN!!!
http://www.guardian.co.uk - it is a left-leaning (nay - very liberal) UK Newspaper with an astonishingly comprehensive and free web site.
Also:
The BBC:
http://news.bbc.co.uk
The Economist is (mostly) a pay site, howver some 10-20% of articles are free and are amazingly well researched:
http://www.economist.co.uk