Picking a color that shows up more clearly on bluemarble
Use index.html instead of example-list.html

The original decision to avoid index.html was because it only works with a build step.  Since we've all accepted a build step, the more sensible name is index.html.  Without this change, every hosted example has a link to http://openlayers.github.com/ol3/master/examples/example-list.html which 404s.
The _blank target is an antipattern

The examples all have links back to the index page.  People know how to open links in new tabs/windows when they want to.
Using a server that is not down