I wrote an article based on a series of four sermons I did back in 2012 that became four posts on this blog. If that was not enough, I am considering utilizing the article to develop a chapter of a book that looks at Acts 1:8, particularly structured on the four locations mentioned (Jerusalem, Judea, Samaria, Ends of the Earth). If I do that, the goal would be practical for churches to think about missions from a local church perspective. Anyway, feel free to read the article, and tell me what you think. (If you are looking for a very deep article, this is not it, as might be determined by the complete lack of footnoting.)