1 INTRODUCTION

2 CFHT STRIPE 82 SURVEY AND WEAK LENSING CATALOGUES

3 WEAK LENSING PEAK ANALYSIS
3.1 Theoretical aspects
3.2 The convergence reconstruction and the peak identification
3.3 Theoretical model for weak lensing peak abundances

4 COSMOLOGICAL CONSTRAINTS FROM CS82 WEAK LENSING PEAK COUNTS
4.1 Fitting method
4.2 Mock CS82 analyses
4.3 Results from CS82 observational data
4.4 Other constraints

5 SUMMARY AND DISCUSSIONS