Daily Tracking: Google Finance
Weekly research: Barrons.com (the weekly financial digest)
NOTE: a way to read Barron's paid articles FREE is to, a) Go to Barrons.com, and find the article titles, b) to to "Google News", and search for that article in 'news'. It seems Google news has a paid subscription. I read "Up & Down Wall Street" for a weekly 'finger-in-the-wind' on the US stock market.