Interest Surveys for Students to Take:

CaliforniaColleges.edu has some excellent career planning resources, including an Interest Profiler and Career Search Tool.
EducationPlanner.org offers a quick Career Clusters survey that helps to match a students interests and abilities to career clusters. Students can then read more about each resulting career cluster.
O'Net Interest Profiler - Students take an Interest Profile Survey that helps them begin the exploration process. Offers comprehensive occupational information for exploring occupations and career paths.

Read More or Watch Videos:

Big Future through CollegeBoard - with articles and videos to research different majors and career paths.

College Majors 101 - A website packed with information on over 150 college majors: general description, which colleges offer this major, employers, income forecasts, and informational videos.
Educate to Career - a non-profit that generates beginning salary averages for academic majors within a specific school.
Payscale.com - determine what you might earn, through the largest salary profile database in the world.