Question for August 5, 2010

X began the service in 1995 as an email distribution list of friends, featuring local events in the SFO bay area, before becoming a web-based service in 1996. After incorporation as a private for-profit company in 1999, Y expanded into nine more U.S. cities in 2000, four in 2001 and 2002 each, and 14 in 2003.

In 2009, Y operated with a staff of 28 people. It's main source of revenue is paid job ads in select cities and paid broker apartment listings in New York City.

The site serves over twenty billion page views per month, putting it in 33rd place overall among web sites worldwide and 7th place overall among web sites in the United States, with over 49.4 million unique monthly visitors in the United States alone. With over eighty million new classified advertisements each month, Y is the leading classifieds service in any medium. The site receives over two million new job listings each month, making it one of the top job boards in the world.

Identify Y. Bonus points for getting X.