American College of Chest Physicians: Mostly for ACCP members but is adding CME courses, positions statements and a limited number of patient information pages. Also links you to CHEST abstracts.
ACCP's "Clinical Information"
American Thoracic Society: The ATS homepage.
ATS Position Papers: Documents on PFT's, tuberculosis, lung volume reduction surgery among others.
American Lung Association-Oregon: Lots of healthy information on pulmonary topics such as emphysema, smoking cessation, asthma camps, as well as plenty of other links. The national organization American Lung Association also has an extensive web site.
Lane County Medical Society: Information on how to reach the county medical society, local medical links, as well as additional healthcare related links.
Other: The ATS web page has a comprehensive set of links that includes several other national and international organizations