Use cases - Directory

Karen enters the directory
Karen sees three sections, displayed in a similar way to the three choices of the homepage (big icons horizontally aligned, names below): Campaigns, Organizations & Users.
Each of them has a RSS feed (cached, updated once per hour)
Results are displayed alphabetically, the same way as search results
Only results whose title begin with a given letter are displayed at the same time (default "A"). An alphabet is displayed horizontally on top of the results to allow Karen to switch the letter.