If you're in the European Union, or some of your clients are, you're probably aware of the EU requirement to notify visitors that your website uses cookies. In today's WSN 10.0.9 Beta 1 release, I've added an "EU cookie privacy notice" switch at Admin Panel -> Settings -> Switches. Enabling this switch automatically handles your legal obligations by adding a cookie notice in a semi-transparent bar at the bottom of the screen. The visitor can dismiss the notice by clicking the X (which, appropriately enough, sets a cookie lasting one year to remember that they've dismissed it).

If you'd like to customize the look of the cookie notice bar, style .cookienotice in the stylesheet or edit the notice area in the wrapper template just above </footer>. To change the text on an english-only installation just edit the wrapper template... on a multilingual installation, go to Admin -> Customizations -> Language and search for general_cookienotice.

The notice links to your privacy policy, which uses the "Privacy Policy" template. In multilingual installations, the text of the policy is in the language item privacy_info.