Cityfile: New York's Most Notable and Influential

Union Square: Then and Now | The landscape of the city changes with each passing day as retail outlets come and go and older buildings are torn down to make way for new developments. But if you want to see what NYC looked like way back in the day, the Mannahatta Project has an interactive map that allows you to zoom in on any section of Manhattan—such as Union Square, left—and then travel back in time to see what the same area looked like in 1609. More

You won't be checking out the Blue Collar Comedy Tour this summer. Can we interest you in the White-Collar Criminal Tour instead? Click on the image above for the locations of a handful of white-collar crooks currently behind bars. Then all you have to do is use Google's driving directions to plot out your fun, summer road trip! (You'll have to check with each prison about visitation privileges, of course.) As you can see, it's an incomplete list. Email us at tips@cityfile.com and let us know who we're missing and we'll add them right away. [White-Collar Criminal Tour]

FiDi, Greenpoint Could Really Use a Sitcom | This map of where famous sitcoms were set—on TV, that is, not in real life—isn't the most precise thing in the world. (We're going to assume the placement of Sex and the City on the Upper East Side is because Charlotte's character lived there?) But if you're a TV location scout and you're looking to showcase an NYC neighborhood that has yet to be ruined by round-the-clock shoots and national TV exposure, it should be a good place to start. [Danmeth.com via Lisanti]

Bernie's Victims: The Map | Were you searching for a topographical representation of Bernie Madoff's victims? Your search is over. Zero Hedge took the addresses in places like Manhattan, Los Angeles, and Palm Beach, geocoded them, and then imported them into a mapping application. This is another example of the recession's silver lining: When you take the brain power on Wall Street that was once focused on making money and redirect it to other projects, great things can happen. Just imagine what would happen if you took all these hedge funders and focused them on a cure for cancer! [Zero Hedge]

LES Hotel Saturation: A Map [Bowery Boogie]

The folks over at Property Shark have kindly put together an interactive map of residential sales in Manhattan during the fourth quarter. We have a feeling the map for the first quarter of 2009 won't have quite as many big maroon dots, but let's all keep our fingers crossed, okay? [Property Shark]

Punch in your zip code and SitorSquat.com will show you all the public restrooms in your immediate vicinity. And, yes, the site offers an iPhone app, so you can take advantage of the service when you're walking down Broadway and your bladder is about to explode. [SitorSquat via Buzzfeed]

Here's another quasi-useless application powered by Google Maps: HookupMaps.com plots out the "casual encounters" section of Craigslist, so you can now see precisely where all the ugly people are getting busy in real-time. As for the person looking for a little excitement at Ground Zero, it's a "BBW looking for West Indian man," just in case you're interested and you meet the criteria. [HookupMaps via CNET]

Know Your Neighbor | Just what we've been waiting for! Thanks to FamilyWatchdog.us, you can now create a map of all the sexual offenders in your neighborhood. [Gawker]

There's probably been a time or two when you've been tempted to check out a restaurant or bar simply because some celebrity supposedly "owns" it. Maybe I'll see Justin Timberlake devouring a plate of ribs at Southern Hospitality! Or I'll spot Robert De Niro slurping on some pasta at Ago! Restaurateurs know this, too, of course, which is why they're all so eager to attach a celebrity name—any one will do!—to their ill-conceived bistro, brasserie, speakeasy, lounge, or barbecue shack. We don't want to be the ones to crush your dreams and tell you that there's no chance you'll see these famous faces at these venues. Just in case you're the more optimistic type—or just curious who has a stake in what—we happily introduce the Cityfile celebrity-owned restaurant/bar map!

• Celebrity Restaurant/Bar Map

Ever wonder why the CEO at your company has a $10,000 telescope parked in the corner of his office? It's not to admire the birds. Or even to peek at the woman in the neighboring office building who changes her blouse at precisely half past five. It's to look in the offices of other CEOs, obviously.More