Can you get merits for writing an article for another industry's trade magazine or speaking at their conventions?

For instance, I've spoken at the Association of Bridal Consultants 2009 national convention, the 2011 Wisconsin ABC conference, and wrote a published feature article in the May/June 2011 Wedding Planner Magazine. These are activities for which merits would be received if it was for PPA. But in this case, the education went to an associated industry trade organization.