Michael Bloomberg presentation June 11, 5:30 p.m. 292-9741.

Internet Security Seminar, June 30 and July 1 at the Royal Hamilton Amateur Dinghy Club, 9 a.m. to 5 p.m. Marcia Williams at 295-2000 ext. 311.

Annual Health Care Captives Congress, July 9 to 10, Hamilton Princess, 617-630-1330.

Business Calendar is published every Monday in the Business section. If you have an event or conference you want to list, contact Ahmed ElAmin or David Fox at 295-5881 ext. 247 and 248 respectively.