How can I advertise my website for free?

[skellams]

There are many ways to advertise free. Since I don't know what kind of site you have, I will just tell you general ways.

Social media site like Pinterest, Google+, and Twitter (if used correctly) will bring high quality targeted traffic as well as raise your Google page rank.

Social bookmarking sites should be used to bookmark your pages and posts.

Article marketing works great. Here's a list of the top 50 http://www.vretoolbar.com/articles/directories.php

Here's a list of 20,000 directories to list your website in http://www.web-directories.ws/

Blog commenting and forum board posting are good ways to raise your search ranking and drive traffic to your site. Make sure your posts are intelligent and helpful and not spammy ads.

Hopefully that helps. Good luck!