If you want to find news pieces about the feeding tube case in FL...i'd suggest using Google News to do a keyword search. It's great for pulling recent news from many, many sources.
In general, you can develop a good working knowledge of healthcare issues by following the Washington Post health section, NY Times health section, and/or the WSJ health industry section. The NYTimes and the Post are free, but the Journal isn't. I decided to pay for an online subscription a while back and haven't regretted it at all.
Unfortunately, the preeminant healthcare journal, Health Affairs, isn't free, but if you can get your mits on it, it's a great source for original findings. The New England Journal of Medicine, JAMA, etc, will also have pieces on healthcare issues.
For slightly biased perspectives, you can go to the websites of various groups (the AMA, PhRMA, the AAMC, American Hospital Association, AFL-CIO, etc) and find their position papers on topics that affect them.
Or you could go to the websites of policy think-tanks, like the Brookings Institution or Heritage Foundation, to see their stances (mostly for policy issues).
You could also subscribe to the AMSA (American Medical Student Association) health policy listserv. People usually send links to healthcare-related stories and news to it every day, and it has the added benefit of giving you a med student perspective at times.
For ethical issues, this website is great (I found out about it here on SDN):
http://eduserv.hscer.washington.edu/bioethics/topics/index.html