I was just doing some research on English tests, and I went another site, called IELTS Buddy. This site really impressed me! It has deep and comprehensive information about the IELTS test. It tells about the structure of the test. It has ideas about how to study for the test, and how to prepare for the test.
By the way, I think taking tests is a great way to help you study English. They give you information about your progress ("Am I getting better??"). Tests give you motivation to study and work hard. Tests can also be used to help you get jobs, and move to other countries, if you need to. They make you a more responsible student.
The IELTS test is also the most practical test for English that I have seen.
If you are interested, go take a look at this site called IELTS Buddy here.
(By the way, I am not being paid to say this. I will not get anymoney if you go there.)