The seed for this crawl was a list of every host in the Wayback Machine 
 
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 Image 1 of 29 Zynga’s 668,000-square-foot headquarters on 8th and Townsend in San Francisco. Zynga’s 668,000-square-foot headquarters on 8th and Townsend in San Francisco. Photo: Getty Images File Photo 
 
 Image 2 of 29 Campari America: The spirits company is not only headquartered in the city; its most famous vodka, Skyy, was invented by San Franciscan entrepreneur Maurice Kanbar in 1992. Campari America: The spirits company is not only headquartered in the city; its most famous vodka, Skyy, was invented by San Franciscan entrepreneur Maurice Kanbar in 1992. Photo: Liz Hafalia, The Chronicle 
 
 Image 3 of 29 GAP Inc.: The famous retailer was founded in San Francisco in 1969 by Donald and Doris Fisher. The headquarters remain in the city where it all started. GAP Inc.: The famous retailer was founded in San Francisco in 1969 by Donald and Doris Fisher. The headquarters remain in the city where it all started. Photo: LM Otero, AP 
 
 Image 4 of 29 Good Vibrations: The women-oriented sex business was founded in 1977 by Joani Blank. Good Vibrations: The women-oriented sex business was founded in 1977 by Joani Blank. Photo: Mike Kepka, The Chronicle 
 
 Image 5 of 29 Kimpton Hotels & Restaurants: The hotel and restaurant company began in San Francisco over three decades ago. It was the first boutique hotel and restaurant company in the U.S. Kimpton Hotels & Restaurants: The hotel and restaurant company began in San Francisco over three decades ago. It was the first boutique hotel and restaurant company in the U.S. Photo: Courtesy Hotel Solamar 
 
 Image 6 of 29 Jessica McClintock: The Jessica McClintock headquarters are located in San Francisco. The designer is famed for her Gunne Sax line of prom dresses, which were huge in department stores in the 1980's. Jessica McClintock: The Jessica McClintock headquarters are located in San Francisco. The designer is famed for her Gunne Sax line of prom dresses, which were huge in department stores in the 1980's. Photo: Lacy Atkins, The Chronicle 
 
 Image 7 of 29 Craigslist: An online classified site founded in San Francisco in 1995 by Craig Newmark, a former computer programmer. Craigslist: An online classified site founded in San Francisco in 1995 by Craig Newmark, a former computer programmer. Photo: Justin Sullivan / Justin Sullivan / Getty Images 2006 
 
 Image 8 of 29 Dropbox: A file hosting company, founded in 2007 by Drew Houston and Arash Ferdowsi, is headquartered in SOMA. Dropbox: A file hosting company, founded in 2007 by Drew Houston and Arash Ferdowsi, is headquartered in SOMA. Photo: Paul Chinn, The Chronicle 
 
 Image 9 of 29 Eventbrite: A self-service ticketing platform headquartered in San Francisco. Here employees pose for a photo at the Eventbrite office. Eventbrite: A self-service ticketing platform headquartered in San Francisco. Here employees pose for a photo at the Eventbrite office. Photo: Josh Edelson, JOSH EDELSON / SAN FRANCISCO CHR 
 
 Image 10 of 29 Buy photo Lyft: The transportation network company is headquartered in San Francisco. Here the Lyft mustache is displayed in a car at the community driver rally event in 2015. Lyft: The transportation network company is headquartered in San Francisco. Here the Lyft mustache is displayed in a car at the community driver rally event in 2015. Photo: Amy Osborne, The Chronicle Buy this photo 
 
 Image 11 of 29 Buy photo Yelp: Yelp CEO and co-founder Jeremy Stoppelman poses for a portrait at Yelp headquarters in SF. Stoppelman and Russel Simmons founded Yelp after leaving PayPayl. Yelp: Yelp CEO and co-founder Jeremy Stoppelman poses for a portrait at Yelp headquarters in SF. Stoppelman and Russel Simmons founded Yelp after leaving PayPayl. Photo: Craig Hudson, The Chronicle Buy this photo 
 
 Image 12 of 29 Airbnb: Founded in August of 2008 and based in San Francisco. Airbnb is an online marketplace for people to list and book accommodations around the world. Airbnb: Founded in August of 2008 and based in San Francisco. Airbnb is an online marketplace for people to list and book accommodations around the world. 
 
 Image 13 of 29 Levi Strauss & Co.: The denim company was founded during the Gold Rush of the mid 1800s and remains headquartered in San Francisco. Levi Strauss & Co.: The denim company was founded during the Gold Rush of the mid 1800s and remains headquartered in San Francisco. 
 
 Image 14 of 29 LucasFilm: The film and television company was founded by filmmaker George Lucas and is located in the Presidio. Many fans of the Star Wars series make a pilgrimage to the Yoda statue in the courtyard of LucasFilm headquarters. less LucasFilm: The film and television company was founded by filmmaker George Lucas and is located in the Presidio. Many fans of the Star Wars series make a pilgrimage to the Yoda statue in the courtyard of ... more Photo: Liz Hafalia, The Chronicle 
 
 Image 15 of 29 Pinterest: Originally located in Palo Alto, the photo board company made the move to San Francisco, California in 2012. Josh Edelson/AFP/Getty Images Pinterest: Originally located in Palo Alto, the photo board company made the move to San Francisco, California in 2012. Josh Edelson/AFP/Getty Images Photo: JOSH EDELSON / AFP/Getty Images 
 
 Image 16 of 29 Williams-Sonoma Inc.: Is headquarted in San Francisco and is one of the United States' largest e-commerce retailers with brands in home furnishings. David Paul Morris/Bloomberg Williams-Sonoma Inc.: Is headquarted in San Francisco and is one of the United States' largest e-commerce retailers with brands in home furnishings. David Paul Morris/Bloomberg Photo: David Paul Morris, Bloomberg 
 
 Image 17 of 29 Salesforce: The cloud computing company is headquartered in San Francisco and currently building the largest skyscraper in the city. Salesforce: The cloud computing company is headquartered in San Francisco and currently building the largest skyscraper in the city. Photo: Lea Suzuki, The Chronicle 
 
 Image 18 of 29 Wells Fargo: The financial services company has been around long enough to have operated this stagecoach on display at its headquarters in San Francisco. Wells Fargo: The financial services company has been around long enough to have operated this stagecoach on display at its headquarters in San Francisco. Photo: Paul Sakuma, STF 
 
 Image 19 of 29 Twitter: The social networking service company was founded by Jack Dorsey, Evan Williams, Noah Glass and Biz Stone. The company recently celebrated its 10 year anniversary. Twitter: The social networking service company was founded by Jack Dorsey, Evan Williams, Noah Glass and Biz Stone. The company recently celebrated its 10 year anniversary. Photo: Eric Risberg, Associated Press 
 
 Image 20 of 29 Square: The mobile payments services company co-founded by Twitter founder Jack Dorsey is headquartered in San Francisco. (AP Photo/Seth Wenig, File) Square: The mobile payments services company co-founded by Twitter founder Jack Dorsey is headquartered in San Francisco. (AP Photo/Seth Wenig, File) Photo: Seth Wenig, Associated Press 
 
 Image 21 of 29 
 
 
 
 Image 22 of 29 Esprit: The clothing retailer that was formerly headquartered in San Francisco ended its US operation in 2011. Esprit: The clothing retailer that was formerly headquartered in San Francisco ended its US operation in 2011. Photo: Getty Images: Ullstein Bild / Contributor 
 
 Image 23 of 29 Hearst: One of the nation’s largest diversified media, information and services companies was once headquartered in San Francisco and now is located in New York City. Hearst: One of the nation’s largest diversified media, information and services companies was once headquartered in San Francisco and now is located in New York City. Photo: John McMurtrie, The Chronicle 
 
 Image 24 of 29 Folgers: The 150-year-old Folger Coffee Company was founded in San Francisco. The company has since been acquired by Procter & Gamble and now headquartered in Cincinnati, Ohio. Folgers: The 150-year-old Folger Coffee Company was founded in San Francisco. The company has since been acquired by Procter & Gamble and now headquartered in Cincinnati, Ohio. Photo: Stephanie Wright Hession 
 
 Image 25 of 29 Sharper Image: The company is most known for its gadgets and accessories was founded in San Francisco and later relocated to New York City. Sharper Image: The company is most known for its gadgets and accessories was founded in San Francisco and later relocated to New York City. Photo: Justin Sullivan, Getty Images 
 
 Image 26 of 29 Bank of America: San Francisco was home to the world headquarters of Bank of America until 1998 when it merged with Nation's Bank. The company is now headquartered in North Carolina. (AP Photo/Mark Lennihan) less Bank of America: San Francisco was home to the world headquarters of Bank of America until 1998 when it merged with Nation's Bank. The company is now headquartered in North Carolina. (AP Photo/Mark ... more Photo: Mark Lennihan, Associated Press 
 
 Image 27 of 29 Hills Brothers Coffee: Before being acquired by Nestle, the coffee company that was founded in 1878 had headquarters located in the Embarcadero. Hills Brothers Coffee: Before being acquired by Nestle, the coffee company that was founded in 1878 had headquarters located in the Embarcadero. Photo: Mike Maloney, The Chronicle 
 
 Image 28 of 29 The Rolling Stone Magazine: The bi-weekly magazine was founded in 1967 by Jann Wenner in San Francisco. A decade later the magazine moved its headquarters to New York City. The Rolling Stone Magazine: The bi-weekly magazine was founded in 1967 by Jann Wenner in San Francisco. A decade later the magazine moved its headquarters to New York City. Photo: AP ||||| Zynga shares rallied as much as 13 percent Thursday after first- quarter revenues topped analysts' expectations. Earnings broke even on an adjusted basis for its latest quarter, compared to forecasts of a 1 cent per share loss. 
 
 The stock closed up almost 11 percent Thursday. 
 
 Bookings were the bright spot for the online game maker. First-quarter bookings, the money spent on games by consumers, reached $182 million, up 8 percent from a year ago. Zynga also saw increased ad sales, although its customer base did decline. 
 
 When it came to guidance, Zynga gave mixed projections, with revenues below the average analyst estimate. Zynga also said it is on track to launch 10 games this year. 
 

– As a publicly held company, Zynga, the gaming company perhaps best known for FarmVille and Words With Friends, isn't doing so hot. Its market value of $9 billion in oh-so-distant 2011 has dropped to $2 billion, and the blog Halting Problem says that after factoring in substantial cash reserves, analysts peg its real worth at closer to $500 million. That's a notable sum—it's less than what sources tell Halting Problem is the estimated real estate value of the company's San Francisco headquarters: $540 million. Zynga bought the 668,000-square-foot, seven-story building for $228 million in 2012, and the San Francisco Chronicle reported in February that it was looking to sell the building but then lease it back. As the Chronicle now puts it: "So yeah, Zynga is going from owner to renter with a building that's worth more than it is. How San Francisco." Still, all is not lost. On Thursday, Zynga's shares closed 11% higher thanks to first-quarter revenues beating expectations, reports CNBC. It's not that the earnings were all that strong—they simply broke even, which is better than the expected loss. And while Zynga boasted an increase in ad sales, its customer base declined—an ongoing problem for a company whose bread and butter dates back to the Facebook desktop era but has yet to strike gold with mobile gaming apps. The company says it has released four games this year and will release six more throughout the year, including one about Willy Wonka, reports Adweek. (Zynga once sued a hookup app.)