Techniques
Addresses of Mathematicians
Addresses at the University of Pennsylvania
Telephone, Fax and Email Directories:
    WhitePages.com (USA only?)
    123people.com (USA+ some others)
    switchboard.com (find a business) (USA)
    Infobel (World)
    International access numbers and country codes
    AT&T: USA Directory Assistance,
    SuperPages (USA: like the Yellow Pages)
    US Post Office (Zip Codes etc)
    more suggestions
Maps: Try Google Maps or Mapquest

Here are some tools to help find an address. Best way: simply ask the person. Sometimes that is not possible. If one of the following doesn't work, try another.

Here are some approaches depending on what information you already have:

1. Search special lists such as the membership directory of the AMS
2. Search a "company" directory, such as Cornell University (www.cornell.edu) links to send a message to the author.
3. Newspaper and magazine articles on the Internet frequently have links to send a message to the author.
4. Do a Google search:
    
   Scholarly articles frequently have the authors' addresses:
   (about)
5. Google has several tools for Special Searches

 
Finding Addresses of Mathematicians

• Combined Membership List of the AMS, MAA, SIAM search form (You can use * as a "wild card", except in the first character. Not case sensitive.)
• European Mathematical Society
• Societe Mathematique de France
• Many Mathematics Departments now have Web servers listing addresses. Thus, look in the Web page of the appropriate department: Mathematics Department Web Pages
• Try looking in a mathematics Preprint Server. One of the largest is Mathematics ArXive
• Use Google search.
• If you know both the family name and the name of the computer they use, then on a Unix computer try finger to find the email address.
  For a mathematician at a university in Canada or the USA, if you know the Internet name of the university, as toronto.edu, then a good first guess for their computer is math.toronto.edu and try finger FamilyName@math.toronto.edu.

• Penn Directory (Search Form)
• Philadelphia ZIP Code map (gif)

Following the approaches listed above:

1. If you know the person is a member of a professional society or is on some electronic address list, then try that. The above searches in the AMS Membership List, the French Mathematical Society (SMF), and the Geometer's Address List are examples.
2. If you know the name of the person's home organization, such as Cornell University, you can search for Cornell's directory in various lists of telephone books:
   • Some People Pointing Resources, assembled by the American. Math. Soc.
3. Lookup by name or email address, especially useful for those who have posted Usenet messages.

The search procedures are improving quickly.

• WhoWhere (USA)