A great free font which can be used for a project, website, publication or anything else you have in mind. If you haven't noticed already, I use this font on this very site. The title at the top uses the font and so do the titles for the widgets in the sidebar.
It's a stylish looking font which seems to be in fashion right now. Narrow fonts are definitely "the thing" in the design-sphere at the moment.
Here are some great examples of the font in use.