Brooklyn Creative League offers works space to  freelancers and small business people (work space and community for independent professionals). On the top floor of a building on Carroll Street in the Gowanus/Park Slope neighborhood, it looks quite nice in photos. Here's what the founders have to say about what they're doing:

"We founded Brooklyn Creative League because we
wanted to give independent professionals, small-shop companies, and
nonprofits the tools they need to get their work done: affordable,
green, shared workspace and a community of professional colleagues.

"Before our daughter, Leigh, was born, we assumed that we’d found
professional and familial nirvana: working from home while the baby
played happily in the next room with a loving babysitter. But we soon
realized the downsides: The constant interruptions and distractions of
being at home. The aggravation of spilling spaghetti sauce on your
keyboard because your desk is in the kitchen. The hours lost because
the Internet goes down. The interminable line at the post office. And
the plain old boredom and isolation of the same four walls — day in,
day out.

"That’s why we created Brooklyn Creative League.  Simply put, we wanted a cool, productive space to work in — someplace where we could meet with clients, host a conference call, and make a pitch. And we wanted to work around fun, interesting people who shared our passion for creativity, hard work, new ideas, and a good cup of coffee in the morning."