Blender is being made by hundreds of active volunteers from around the world; by studios and individual artists, professionals and hobbyists, scientists and students, VFX experts and animators, and so on. All of them are united by the desire to have access to a fully free/open source 3D creation pipeline.The Blender Foundation supports and facilitates these goals – even employs a small staff for that – but depends on the online community to achieve this goal. More help is always welcome!
Google SketchUp is a 3D modeling program in which you can convert pictures from 2D into 3D. It is especially designed to create 3D images related to professional projects.
With Google SketchUp you can start a project or use one from another user. After finishing it you can also share your results, allowing the rest of users to use your work. It’s a way to improve and sharing ideas with the people who are interested in the same field.