While Kate makes it very clear that she’s not on board, sites like AshleyMadison.com help lonely (or just low) partners seek out an affair online. The site's tag line "Life is short: Have an affair" sums up its mission statement pretty succinctly. This site hooks married people up with other married people or singles willing to keep it on the low-low. With nearly 7 million members and counting, apparently there's no shortage of people looking for a little loving on the side.