Thanks, guys. Saved me a load of time searching for these. I've been over most of these, keeping me glued to the screen for more than half the day. Found a lot of good info.
http://en.wikipedia.org/wiki/List_of_tenan...ld_Trade_Center is the best source for a list of tenants for all buildings, WTC NYC. Most floors would have a computer room of sorts while a few had full blown data centers. I can't find any info about the two planes directly hitting data centers as has been claimed. The idea loses importance as it would be very difficult to hit any part of either tower without hitting at least one computer room and perhaps a smaller server room, based on personal experience in the field of telecommunications and the tenant lists. My search had zilch to do with batteries btw.