The CDC's site has tons of information regarding recent public health threats and events as well as information on the many threatening diseases and agents.
The FBI's website will carry up-to-date information regarding attacks, threats, rumors and hoaxes, and other activities. They have also posted a printable advisory (.pdf) describing what to do if you receive a suspicious letter or package.
The United States Postal Service details their efforts to provide safe mail delivery. They also have a printable advisory (.pdf) describing what to do if you receive a suspicious letter or package.
If you would like to donate blood to the American Red Cross, call (800) GIVE-LIFE. Locally, you can donate by appointment by calling Little Company of Mary Hospital at (310) 540-7676 or Torrance memorial Medical Center at (310) 517-4647. To make donations of other resources, call (800) HELP-NOW or (800) 257-7575 (en EspaƱol). Donations can also be made over the Internet. Visit the American Red Cross' website for more information. Locally, the American Red Cross of Greater Los Angeles will accept donations via telephone at (213) 739-5267, via their website or by mail to:
American Red Cross of Greater Los Angeles
2700 Wilshire Blvd.
Los Angeles, CA 90057
(make checks payable to "Red Cross" and label "Disaster Relief")
100% of your contribution will be used to support needed services for victims and their families. United Way is underwriting all administrative costs. Make donations to the "September 11 Fund" via telephone at (800) 710-8002, via website, or via mail to:
United Way of New York City
2 Park Avenue
New York, New York 10016
(make checks payable to "United Way" and label "September 11 Fund")
Catholic Charities agencies nationwide are mobilizing to help victims and their families recover from the devastation in New York, Washington DC, and Pennsylvania. To Contribute to the organization's disaster relief fund, call (800) 919-9338, visit their donation web page, or send checks to:
United Jewish Communities has opened the UJC Emergency Relief Fund to assist in the recovery, relief and rehabilitation of the victims of this tragedy and their families. Contributions can be sent to:
UJC Emergency Relief Fund
111 Eighth Avenue Suite 11E
New York, NY 10011
(make checks payable to "UJC Emergency Relief Fund")
New York Governor George Pataki has posted a list of emergency contact numbers on the state's website. Resources include volunteer information, blood donation location information, and telephone numbers of concerned family members and friends trying to locate missing persons.
To report a missing person, please call the number set up by the City of New York: (212) 447-2998.
Helping.org has posted a list of websites and charities accepting online donations and aid for those affected by Tuesday's terrorist attacks. Also includes a "How To Cope" section where you can light a virtual candle, or contact other resources.
Free grief counseling is available for Beach Cities residents at The Gathering Place, 514 N. Prospect Ave., RB. For more information, call (310) 374-6323. This may be helpful for anyone, not just someone who has lost a specific person. Please seek help if you need to talk to someone. Other programs may be available through the Beach Cities Health District.
National Internet service provided Prodigy has created an "I'm Okay" message center that allows individuals who were reported missing to post their name and location, informing friends and family that they are safe.