Making choices in the visual user interface

Raw idea: In some particular scenarios list of items to choose from should be presented to user in the following order:
1) Manual selection from few easily-distinguishable items
2) Keyword search followed by manual selection from the search results
3) Categorized or parametrized browsing

There are should be feedback form/control unobtrusively located on each screen for the user to be able to leave question/feedback to content management team. It should improve the quality of information published.

This scenario may be suitable for resources with very limited area of interest like e-commerce or thematic resources.
Other scenarios may require different order of choices and/or different selection/navigation mechanisms like graph or 2D/3D shape browsers.