Check out these websites for all your textile needs.
Trade Shows
Fabric Purchasing
Mood Fabrics (NYC)
Spandex World (NYC)
NY Fashion Center (NYC)
Fabric Place Basement (Natick)
Take note of their student discount, see their flier for more info: Fabric-Place-Discount-Poster
Grey’s Fabric (Boston)
Sewfisticated (Somerville, Dorchester, Framingham)
Digital Printing
Other