A blend of Twitter and Reporter referring to a person who reports an event in real-time, 140 characters at a time. Easy to do at a sporting event like football, baseball, or soccer. Also, valuable when providing news coverage of a meeting, trial, or political event. Might not be as effective if covering a fire or other catastrophic event.
I was the tweeporter for the soccer match so the club fans who could not attend could keep up with the action.