Blogmarks.net is a social bookmarking service.

Founded in late 2003 and heartquartered in France, we are non-profit and independant.

We believe in the open web, think internet services should be sustainable, build for the long term.

While we are re-launching the service, we only accept new members through invitation.

LINK

事实上只要垄断了土地和房源，就可以利用这种局部垄断，采取比如说提高空置率的办法，减少住宅供应，迫使房价上升。提高空置率是很容易做到的，例如标出天价，让绝大多数人望而却步。