Pastors, just like real people, have trade journals and magazines, which of course, are filled with advertisments and articles intended to make us better at what we do.  A quick purusal of these tools reveals that a recurring theme, in both articles and ads alike, is how important it is to make an IMPACT for Christ.  "We're going to impact the world by planting one thousand churches."  "How to impact your neighborhood with the gospel."  "The impact factor!"  "Impact your city for Jesus!!"  "Real leaders make an impact!!" 

I finally decided to look up the word in order to see what it really means.  I discovered that the word, while occassionally used with positive connotation, is largely negative and destructive.  It means,