Redfin, the popular real estate listings site, has filed for IPO. The Seattle-based company unveiled its filing, suggesting that it will raise $100 million, a placeholder that is subject to change. The timing of the filing implies that Redfin is likely to debut in late July or early August. Because of the JOBS Act, most companies can wait until 15 days before their investor roadshow to… Read Morevia Tingle Tech