Hi Nabil,
You can get lot of information of IELTS from internet. The details are mentioned below but if you really want to do IELTS course then British Council is the best place to practice IELTS.
General English Grammar and Vocabulary Practice
Basic sentence structure. Find out about SIMPLE, COMPOUND and COMPLEX sentences. Do the quiz.
http://www.eslbee.com/sentences.htm.
Lots of general listening practice, including listening for academic purposes.
http://www.esl-lab.com/
General English practice from the BBC, including video-based work
http://www.bbc.co.uk/worldservice/learningenglish/
Grammar practice, vocabulary practice and podcasts to practice listening
http://a4esl.org/
IELTS Practice
The Cambridge ESOL IELTS home page, which links to excellent introductory IELTS resources
http://www.cambridgeesol.org/teach/ielts/index.htm
Key administrative information for IELTS candidates.
http://www.ielts.org/
Introductory information and exercises in IELTS listening, reading and writing.
http://www.examenglish.com/IELTS/index.php
Academic module writing assessment and sample scripts (click on bottom link ‘sample scripts’).
http://www.cambridgeesol.org/teach/ielts/academic_writing/aboutthepaper/focus_on_assessment.htm
General module writing assessment and sample scripts (click on bottom link ‘sample scripts’).
http://www.cambridgeesol.org/teach/ielts/general_training_writing/aboutthepaper/focus_on_assessment.htm
More IELTS writing samples with estimated grades suggested by teachers.
http://www.ielts-blog.com/category/ielts-writing-samples/
A fairly wide range of resources, including writing practice tasks with model answers.
http://www.ielts-exam.net/index.php
Some free IELTS lessons.
http://www.ieltsgym.com/?id=FreeEnglishlessons
Use www.youtube.com .Try searching for IELTS videos. For example, there are some by the following authors
• Voxguru
• EnglishRyan
• Ukgate
Lots of IELTS resources, including some sample essays with suggested grades and brief teacher reports.
http://www.ielts-blog.com/home/
http://www.askynz.com/ielts/preparation.htm
A web page of useful tips and hints for the exams. Not interactive but informative nonetheless.
http://www.pearsonlongman.com/exams/ielts/students-activities.html
IELTS information provided by a major course book publisher