Frank Catalano is most rapidly contacted via this straightforward web form ( * means required).
Note that Frank is no longer accepting consulting clients (in July 2015, he joined SchoolMessenger as its vice president of marketing strategy). And please do not contact him with public relations pitches. His GeekWire columns are an interesting outlet for analysis, but only a sideline to the edtech industry day job.
Via US Postal Service:
P.O. Box 99641
Seattle, WA 98139
206.659.1228 (Pacific time zone)