Link bidding directories like http://simplelinkbid.com is a great way to advertise your site, increase your pagerank and adding backlinks to your site. These work like auctions where you will bid to the highest amount you can afford, or outbid the highest bidder and be on the top, have a link leader link at the top right of the page and also have your link site-wide.

Most of the time these bids start out at about $1. That is VERY cheap worthwhile to sumbit to a site like this. You can bet these sites are heavily promoted and manually configured. There is 0% spam allowed at http://simplelinkbid.com and they accept sites almost hourly.

You can also make your site stand out from the rest of the listings by adding extras like:
Adding a star
Adding a badge
Making your text bigger
Making your description larger
Adding color to your text
Adding up to 5 deep links of your site

Adding the 5 deep links of your site is the best option to obtain a page rank throughout your website.

If you have anymore questions on promoting your site, feel free to contact http://simplelinkbid.com/contact.html or comment here and I will help you the best I can!