Another method for DoFollow link building is via DoFollow social bookmarking. Most social bookmarking networks require you to register, and once you have done so, you are able to submit links to those networks. Those links will be DoFollow links back to your site. The following list includes social bookmarking networks that are in working order, accepting new members, free registration, lists popular links on the homepage and are DoFollow of course, as of August 2009. I have also included the browser bookmarklets for each of these sites in brackets next to the site name, when available. These buttons will make bookmarking a page on a particular network faster. Simply drag them to your bookmarks toolbar on your browser. And whenever you sign up, be sure to fill out your profile with a photo. This will make it more likely that someone will click on your link submission (for sites that allow voting), and some sites also have DoFollow links to your homepage specified i...