1)   MockupScreens 3.17
Sketch screen mockups and experiment interactively with your clients. Organize mockups in scenarios and quickly create wireframe of your application, before any coding has started. MockupScreens main design goals are ease of use and productivity.
sketch, rapid, screen, screens, mock, mockup, mockups, ui, gui, prototyping,

 2)   3D Graph 2.12
Application for displaying 2D and 3D graphs for web presentation and for functions of 3 dimentions
3D, graph, functions, 3-space, 3-dimensional, graphing, 3-d, hyperbolic, paraboloid, elliptical,

 3)   Wireframe black and white icon set 1.0
244 black & white software icon set created by Gentleface custom icons design company. Perfect for wireframes and iTunes like interfaces. Icons are optimized for 16x16 pixel size and available in 16x16, 32x32 and 48x48 pixel sizes.
icons, black, white, wireframe, prototype, toolbar, custom, custom icon, software icons, application icons,