Cacoo – Create diagrams online Real time collaboration
online Real time collaboration
Cacoo is a user friendly online drawing tool that allows you to create a variety of diagrams such as site maps, wire frames, UML and network charts. Cacoo can be used free of charge.
Among the several web screenshot capturing extensions available, FireShot stands out with its unique image annotation capabilities (does not work with Flash).
and a handy little overview on “inclusive design”