Today: American Chamber of Commerce breakfast: 'How social media is influencing the US midterm elections'. Bank of America Tower. Tomorrow: Joint commerce lunch: 'Direct marketing and the Personal Data (Privacy) Ordinance'. Renaissance Harbour View Hotel. British Chamber of Commerce lunch: 'Preparing to do business in China'. British Consulate-General. Hong Kong Securities Institute lunch: 'New trading system for the new era - Tokyo Stock Exchange's experience'. Hong Kong Securities Institute. Friday, September 3: Canadian Chamber of Commerce workshop: 'Environmental performance'. Kinwick Centre, Central. Tuesday, September 7: Canadian Chamber of Commerce evening: 'Will cross-border employees give rise to corporate tax problems?' Kinwick Centre, Central.