○ Bookmarks
Inspired by Devine's idea, who was in turn inspired by marginalia.nu:
Create a list of bookmarks linking to websites you find interesting, and publish it for the world to see. It's a bit strange, almost nobody seems to be doing this. Looking through a sample of personal websites, very few of them has links to other personal websites. A hyperlink isn't a marriage proposal. It is enough to find some redeeming quality in a website to link to it. It costs nothing, and helps bring traffic to pages that you yourself think deserve it.