Join the Jonas Brothers Fan Club, known as Team Jonas, and sign up for their newsletter. Fan Clubs are great ways to learn about where they will be for events and if there is one in your area. You can win more than a chance to meet them through their fan club as well.
Enter contests on the radio and on television. There are numerous radio stations now that are currently offering backstage passes to concerts and the opportunity to meet and greet the Jonas Brothers.
Add them as a friend to your Myspace page! Yes, the Jonas Brothers are on Myspace and invite you to leave them a comment. They try to reply to each and every fan that leaves one. Nick has also been quoted saying "We would date a fan!..."
Nick, Joe and Kevin Jonas have also taken the time to stop and greet the fans at their concerts. **You will need to arrive hours before the concert starts and be there when they get there!**
These are just a few ways to get to meet the group the Jonas Brothers, though there are others if you happen to know someone that knows someone that knows them too!