I am interested in working as an online tutor and I'm looking for
several good companies to apply to.  A little about myself- I have a
BS with a double major in physics and mathematics and I'm currently
employed as a technical support engineer at an optical
R&D/manufacturing company.  I don't have any type of teaching
certification.  I could tutor in subjects such as mathematics and the
natural sciences (and several other subjects) at the advanced college
level and down through junior high or lower.
What would be a good answer:  a listing of no more than 6-8 websites
of large reputable tutoring services that are currently hiring (or
accepting applications for) online tutors.  A good answer will receive
a generous tip.

http://www.wealthytutor.com
http://www.tutoreasy.com
http://www.tutoronline.org

besides these I dont know any that could help you.

you can go to www.aol.com  
            www.yahoo.com
           www.google.com
            www.msn.com
  
They are best