The initial public offering of real-estate listings Website Trulia proved a big winner, with shares skyrocketing 40% higher. The stock IPO’d at $17 and opened at $22.10. Trulia (TRLA) shares rose $6.85, or 40.4%, to $23.89. Net proceeds are expected to come in at $75.2 million. The revenue model is subscription sales and advertising, and [...]