OBSERVER - Dec 11 - SecondWife.com is a matchmaking site that enables Muslim men to search for second, third, or fourth wives. On the flip side, women can search SecondWife.com profiles if they hope to become an extra wife. Yusuf Khan launched the UK-based polygamy site three months ago. The site already has ~3K users. The Koran permits men to marry up to four wives, as long as they can support them financially and treat them all equally. A 2008 report by NPR estimated that 50K to 100K American Muslims engage in the practice.