1) Mark Van Baale discussed effectively using Twitter and organizing Twestival events in Kansas City that raised money for charities.
2) Twestival events are organized globally where people meet offline for a cause, and Kansas City has organized two successful Twestival events that raised $3,700 and $3,000 respectively for charity: water and a local animal shelter.
3) Mark explained how to use Twitter effectively to connect with others, promote events and causes, and provided tips for getting started on Twitter.