ShopSocially, a social commerce startup, is formally announcing the launch of its social shopping platform and is revealing some of its early insights from its customer lineup. The company has worked with several hundred customers to date, including big-name brands like Sears, The Children's Place, Sport Chalet, CafePress, Ritz, Zales and others. We've also learned that the company had quietly raised an angel round of $550,000 late last year through TiE Angels, which is in addition to the $1.1 million in funding from October 2010.