Mr Massie says that businesses and the web industry need to ensure that the web is barrier free.

BBC: NEWS | Technology | New standards for website access

Diane Ausavich, a remodeling contractor in Milwaukee, says a pair of physicians, as part of a bathroom renovation, recently installed a barrier-free, walk-in shower and higher countertops in their three-story lakefront home built in the 1890s.

WSJ: The New Rules of Remodeling

He said that free current accounts provided a barrier to entry into the UK retail banking sector because this core product "is usually given away for free", prompting banks to try to make profits by pushing other products.

BBC: Bank rules seek to prevent account mis-selling

Preventing this process using an iron-free, corrosion-resistant alloy barrier is particularly important in a city like Boston, where the air is damp and laden with salt water.

ENGADGET: Engineering a better bicycle with DBC City Bike Design Alt

Because of the MMO aspect, your fights actually matter in the grand scope of the world, and as a free-to-play title, the barrier to entry is exceptionally low.

FORBES: Connect

The lower barrier to speaking online allows anyone with an Internet connection to publish his thoughts free from the editorial constraints that serve as gatekeepers for most traditional media of disseminating information.

FORBES: Google: Can Anonymous Emails Remain Anonymous?

Android recently crossed the 50% global market share barrier in the mobile OS market helped by both its wide range of manufacturer-partners as well as its free and open source roots.

FORBES: Google's Mobile Search Becoming More Valuable Than Traditional PC Search