This week’s edition goes out to the Walker New Media department, who built this site: Classic HTTP server error messages… in cats.

Which museum has the most Twitter followers? The most engaging Facebook posts? This site aims to track it all, by watching the online life of some 3,000 museums.

Having driven well over 25,000 miles with its 360-degree Street View cameras, Google announces that it has completed documentation of the destruction from last March’s earthquake and tsunami in northern Japan.

For Music Hack Day 2011 last week, Berlin-based web developer Robert Böhnke created a hack that has the iPhone’s voice-activation interface Siri laying down lines from Notorious B.I.G.’s “Hypnotize.”

As the Walker’s name signals, we’re a center, bringing together pursuits from commissioning performances and collecting art to convening discussions about culture. Acknowledging our mission to investigate the questions that shape us as individuals, cultures, and communities, I’m excited to introduce our new website, an online hub for ideas about art, both inside the Walker and beyond.

The Minneapolis Sculpture Garden is among the newest places people can explore with SCVNGR, a rapidly growing location-based mobile app. Writer and former marketing intern Scott Donaldson gives the scoop on how it works—and why the Walker is using it in this urban landmark and elsewhere. Snap a photo of yourself “holding” the spoon in front of Spoonbridge and Cherry: + 3 points. Dream up a new title…

Out of the ever-expanding ways to use Google Street View for creative projects comes a music video for A Ghost Train, which uses manipulated Street View images for a continuous “stroll” through five continents and four seasons.