Travelzoo (TZOO) shares were down 14% early Friday after the travel-focused Internet media company issued a warning that it expects to report Q3 revenue and earnings below Wall Street expectations. The company expects sales of $35 million to $35.5 million and earnings per share of 20 cents to 22 cents. Analysts polled by Thomson Reuters had been expecting $38.9 million and 27 cents, on average. "We continue to be positive about our long-term