Set your Google Scholar Preferences for CUA resources
Finding the Facts (quick Reference Tools)...
NIST's Physical Reference Data (http://physics.nist.gov/PhysRefData/contents.html) has lots of physics data, including a database of the fundamental physical constants (and correlation coefficients).
Keeping Up with Physics News...
Come in to the library and browse our newest journals, or take a look at some of these:
www.arXiv.org, "Current Awareness Services" - it's free to sign up, and you'll get e-mails when new papers arrive in your area of interest.
Physics World has physics news, job postings, and links to different resources.
www.physlink.com has physics news, job postings, links, and discussion forums.
NASA website has lots of information about NASA projects and Astrophysics in general.
NASA Open Data Portal: NASA's clearinghouse site for open-data provided to the public.
NIST Physical Measurement Laboratory lets you know what's going on in the Physics Laboratory of the National Institute of Standards and Technology - lots of info and reference material.
See Sherpa/RoMEO for publishers copyright agreement with authors
Professional and Scholarly Organizations
American Association for the Advancement of Science
http://www.aaas.org/
American Association for Physicists in Medicine (AAPM)
http://www.aapm.org/
American Institute of Physics (AIP)
http://www.aip.org/
American Physical Society (APS)
http://www.aps.org/
European Physical Society
http://www.eps.org/
Institute of Physics (IoP)
http://www.ioppublishing.com/
International Association of Mathematical Physics (IAMP)
http://www.iamp.org/
International Centre for Theoretical Physics (ICTP)
http://www.ictp.it/
International Union of Pure and Applied Physics (IUPAP)
http://www.iupap.org/
The National Academies (US)
http://www.nationalacademies.org/
Society of Physics Students
http://spsnational.org/