I am choosing to write a letter because I feel that they might connect more to an audience when they are individualized and feel a personal call to them throught the writer. In that way I think that a speech might be to general when asking some one to participate in something as personally motivated as a discourse community. I will be writing about the robotics and engineering discourse communities and problems they are trying to fix as well as why they might be interesting to the audience.

Introduction

communities and why you might like them

Examples of things they have solved

Issues that they have to solve

My thoughts on these communities and why you should join

Conclusion