Write down the kind of tutorial service you're seeking. Write down the days and times you're available for tutoring and your maximum budget. Make sure to factor in the distance you will have to travel or the distance the tutor will have to travel to come to your location.
Visit the Internet and search for the type of tutorial service you want.
Research the tutorial services based on the criteria you've established. Select five services that meet your needs and write or print out their information from their websites.
Compare the prices of the tutorial services. If there's a big discrepancy in prices, call each tutorial service and ask what accounts for them charging more than their competitors. Often times, services with more experienced and more educated tutors will charge more, but you should also ask about any specials the company is offering. Talk to friends, relatives or colleagues who have used one of the tutorial services, and solicit their opinions.