Expand Making a Difference franchise to encourage community involvement and problem solving. Viewers might be asked to submit nominations for do-gooders who deserve attention or support; activists/samaritans could submit proposals for initiatives that can "make a difference" and viewers would vote/comment on their favorites. At regular intervals (monthly/quarterly?) or at completion of flight, the winning ideas might ...more »
Ask users and travel writers to submit suggestions on the best places to go for family vacations (or adventure travel, or romantic weekends, on a budget, etc.). Entice users to vote and comment on their preferences. Perhaps pair this with some kind of contest or sweepstakes in which the winner would get a trip to the top location.