I've cleaned up (somewhat) my notes from Cambridge Part III and have put them online - with LaTeX sources available on GitHub and PDFs linked below.

Advanced Financial Models

• Lecture Notes
• Summary

Advanced Probability

• Lecture Notes

Applied Bayesian Statistics

• Summary

Convex Optimization

• Lecture Notes
• Summary

Mathematics Of Operations Research

• Lecture Notes
• Summary

Non-Parametric Statistics

• Lecture Notes
• Summary

Percolation

• Lecture Notes

Ramsay Theory

• Lecture Notes

Statistical Theory

• Lecture Notes
• Summary

Time Series and Monte Carlo Analysis

• Lecture Notes
• Summary