Wedding products retailer XO Group Inc., formerly The Knot Inc., is expanding its international reach. The company is partnering with a Chinese online media company, Sina Corp., to launch a wedding planning channel on XO Group launched, which offers content, message boards and vendor directories related to wedding events, for Chinese consumers in November 2010. XO Group hopes this partnership will help to further reach the estimated $62 billion wedding products market in China, according to the company.