Students may want to register with more than one search organization, since none will have a database containing all available scholarships (keeping in mind that there can be a lot of work attached to each application).
Search Organization listing 40 companies which perform scholarship-search services:
College Scholarships, Colleges, and Online Degrees
A SAMPLING OF SEARCH ORGANIZATIONS
ScholarshipExperts.com – over two million scholarships.
Scholarship Monkey – one million scholarships
CollegeToolkit.com – includes a list of actual scholarships