Look at the the American Mathematical Society page for Undergraduates in Mathematics. It contains information on Graduate School; Summer Programs; REUs; Special Semesters; Math Clubs, Conferences, and On-line Journals; Competitions, Prizes, and Honorary Societies; Careers, Jobs and Internships. It also has a pdf Brochure.
LSU Career Services will help you find a job, prepare for interviews, or seek admission to graduate school. Visit their website here.
A guide to careers for people who like numbers can be found at
The Attention High School Students and Teachers page of the American Mathematical Society is a useful page that includes a PDF brochure A Guide To Online Resources For High School Math Students featuring a long list of careers that use mathematics to varying degrees.
The Career Center of the American Statistical Association is a website on careers in Statistics. The website contains:
An actuary evaluates risk. We usually think of actuaries working in insurance, but they also work in consulting and finance, among other fields. Advancement as an actuary is through a system of exams given by the Society of Actuaries. General information is available on the website Be An Actuary. If you are looking for a job, check out our list of companies and institutions hiring math majors.
The Undergraduate Mathematics Majors website of the AMS has information including:
An engine for Ranking Graduate Programs in the United States is given on the PhDs.org website. You can input the criteria you wish to use in the ranking. The site uses data from the 1994 National Research Council data. A list of Mathematics Departments is provided by Penn State University. You can click USA to see the list of universities in the US that have Mathematics department websites. By clicking on any university in the list, you are led to the Department of Mathematics web page of that university. All information on Graduate Study can be obtained from these sites. Don't neglect to explore the LSU graduate program website.