May 16, 2009 6:52 pm Can Street Fairs Defy the Economy? Sixth Avenue, Ninth Avenue, Tribeca, Amsterdam Avenue, Park Slope — all with crowds packing the pavement from curb to curb this weekend. But were they spending in these tough economic times? Local 2:14 Final day of classes set for spring at Columbia as negotiations with protesters reach impasse 2:42 Woman fighting for life after carjacker's crash into NJ bar 3:20 Columbia encampments continue for second week 3:49 35-foot-tall ‘Shaved Portions' abstract sculpture 2:06 Art installation more than a mile long unveiled in Queens neighborhood