However in the digital world, with its virtually unlimited space, no barrier hinders the growth and thus enables
reaching critical mass of demand even for niche-products.
Web 2.0 sites often especially cater for the Long Tail, for instance by facilitating community building.
For learning, the interest of Web 2.0 services to enable the Long Tail has the effect that on the one hand creation and
construction of content but also making content public has become easier than ever. This allows producing, publishing, receiving and giving feedback.