Here is a good list of high page ranked sites. They are profile sites with do follow links which means you can generate backlines if you post your website/blog URL here. You can create accounts for free and insert your URL to profile. You can also make content and insert your URL as hyperlinks in some of these sites. With these backlinks, you can easily generate a lot of free and targeted traffic to your site. Note a thing that you can also post comment on others article, image or content with your URL. But be sure that post comments in such a way so that they do not think you as a spammer.