SINA Corporation operates as an online media company and information services provider in the People’s Republic of China. It provides region-focused online portals, MVAS, search and directory, interest-based and community-building channels, free and premium email, blog services, audio and video streaming, online games, classified listings, fee-based services, e-commerce, and enterprise e-solutions. The company operates in five business lines: SINA.com, SINA Mobile, SINA Community, SINA.net, and SINA E-Commerce. The SINA.com business line offers advertising products, including banner, button, and text-link advertisements; promotional sponsorships that are event-specific; and...