All Conferences is a directory that focuses on up-coming conferences, conventions, trade shows, exhibits, workshops, events, and meetings. It may be browsed by subject field or searched.
Created by InterDok, the publisher of the Directory of Published Proceeding, MInd lists information on future conferences, congresses, meetings and symposia. It can be searched by subject keyword, sponsor, location, or year.
This PhysNet site links to sites that list past and future physics related conferences, workshops, and summer schools.