Daniel Bentley is setting a great example at his Worknotes site, using the Fargo outliner to capture, organize, link to, and annotate resources addressing our possible Syrian military strike. Each day's entry includes several standard categories--a recent day included eighteen entries sorted into six categories. The annotations, usually two or three lines long, are specific enough to help a reader decide whether to click the link, and the fact that they can be hidden and revealed adds a layer of practicality to the page. You could do all this without an outliner tool, but you'd be making work for yourself and your readers to do so.