The Brookings Institution
Use 
The website architecture is well organized, with a high level of interaction; the search features, along with some help tools, enables an effective navigation.
Searchability 
The available search option has several advanced features: data, subject, content, document kind and keyword
Downloading
When directly available on the Brookings' website, content material can be downloaded in their original formats - audio, image or text files
Navigational Aids
A clickable textual sitemap and a search help are provided here
User Friendliness
Although the homepage is quite dense with information, the site structure is logically organized and the navigation quite easy