From a tutor’s point of view, my favourite tuition agency website is Startutor.sg (http://startutor.sg/)
Firstly, the website has a great design, the best I have ever seen. They even have dedicated queries regarding their design. (http://startutor.sg/design)
Secondly, they do check and verify all the tutor’s certificates. Hence, parents can be assured that the tutors do have the relevant certificates that they claim to have.
Thirdly, they do have SMS notifications for tutors, which is good since tutors may not check the website everyday.
I am listed as a tutor on Startutor.sg, however nowadays most of the students contact me through my website.
Overall, Startutor.sg is an excellent tuition agency, with good website interface, and stringent certification checking on tutors.
For other subjects besides Mathematics, request for a tutor at Startutor! Startutor is Singapore’s most popular online agency, providing tutors to your home. There are no extra costs for making a request. (Website: http://startutor.sg/request,wwcsmt)