How to improve our anti-bullying group?

[Kody]

Me and my theatre group decided to make a group on Facebook for anti-bullying, and help people stand up to it and spread the word. We feel like since we're all ages 14-16, people, not just kids, will feel more comfortable talking to us. It wasn't part of the theatre group, we all became such a family and it's our own thing.
Any ways, I was wondering if anyone had any ideas to improve, and/or advertise our group. I can design websites, so I may be in charge of that, my friend can make flyers really well so if we want to we will post things around town, our schools, etc. The day we created we got over 100 members to join in under 1 hour, and now we have a lot and I feel like it's going to be easy to be able to advertise. Some of our ideas so far
-Website
-Tee-Shirts
-Public Events (walks,
-Flyers
-Social Media
-Posting on the group to tell their friends
-Etc.

Is there anything else we should be doing, we are trying to get it as popular as possible, this is a world wide group that anyone can join. Thanks!