Nick Fortunato calls himself an "equal opportunity social media junkie." p0ps says his "art-making tool of choice is an iPhone 3GS."

Tell us why you should be part of the Whitney Biennial Twitter Tour.

The second time around was not at all like the first time.

A pile of smashed glass. A urinal repurposed as sculpture. A croissant dangling in a museum. Is it art? It's an age-old question, but one that gets asked relentlessly. Which is why the Pittsburgh-based contemporary arts center the Mattress Factory, teamed up with technology marketing firm Deeplocal, to produce a tongue-in-cheek iPhone application that will answer the question for you.

Vallejo Gantner suffers from performance envy. He directs a downtown theater, P.S. 122, and he's not all that happy that the museum world has become the "new cool" for seeing live art.

But is any of that art ... any good?

The Whitney Biennial has become a biannual bloodsport rite among art critics who descend on the show to ponder what it could all possibly mean and lay waste to whatever it doesn't.

There are 12 video artists in the 2010 Whitney Biennial, and they are all tucked away on the third floor. A better way to see video art?  Or an easier way to avoid it?

It will be easier for individual artist to stand out in this year's Whitney Biennial, because there are only 55 artists in it. It's one of the smallest biennials in Whitney history.

The Tino Sehgal show at the Guggenheim proves that you sometimes have to empty out the museum in order to see what's really there. Share your reaction here.

On Friday, January 29, the Guggenheim Museum opens a highly unusual exhibit. It will not contain a single object: no paintings, sculptures, videos or installations. 

The oughts saw the demise of countless institutions (books, newspapers, network news anchors), but there's one most folks are not likely to miss: the ossified museum cafeteria, with its plastic trays, bounteous fluorescent lighting and grim metal counters stocked with stale egg salad sandwiches and Sanka.

Two thousand artists. Thirty-three countries. More than two hundred fifty galleries. All spread out on a convention center floor the size of 10 football fields. If you're looking for subtlety, Art Basel Miami Beach is not the place to find it.