Conceptshare

ConceptShare is an application targeted at creative professionals that allows for the creation and management of interactive workspaces to present visual designs to others, in order to communicate design intentions and gather feedback from team members.
Its user interface is highly intuitive, the idea and the way it provides to execute the idea is impressive.

The key features and workflow involves:

1. Makes sharing designs and gathering feedback easy.
2. You can share Markup and Review Designs with Ultr-Fast web Performance.
3. Add Comments about specific design elements or changes.
4. Reply to comments to initiate discussions around elements.
5. You can upload designs to the workspace as they are completed.
6. Annotations are embedded in Comment layers.
7. You can Mark, Crop and highlight areas for further discussion.
8. It allows importing popular image for formats including PDF and DWG while retaining vector quality.

Also Check:
http://www.conceptshare.com
http://www.conceptshare.com/tour/resources/movie.html