So far I have this:
1. What are we doing (Detecting spam on stackexchange)
2. Who is charcoal (group of stackexchange members, maybe mentioning some admins by username)
3. How does Smokey work (Scanning all posts via the realtime feed & public API, api bundling, running them through regexes, reporting them in chat for members to feedback)
4. What is metasmoke? (Recording the feedback and posts, keeping stats on everything)
5. Brief about autoflagging
6. we also have a website