hey. i know of a few things you could do for free. try blogging about your website, that works pretty well. you could also use signature links or a website called thenewestwebsites, they feature other websites for free. you might also want to try article submissions and/or directory submissions. all these things worked pretty well for me. i hope they help you too!
>>you could also use signature links
Yes, that's a good suggestion. Here at DaniWeb you can go to your Profile and add your links to your signature. Then do a whole bunch of posting in other threads to help others or in Geeks Loung just to talk.
Don't write articles for the sake of submitting them to an article directory. Besides the fact that they deliver little traffic, if the articles are any good you should put them on your own website to the traffic comes straight to you.
If you write an original article, put it on your website. Then rewrite it or modify it and post it to article directories. Post an announcement to your blog talking about the article you've just written, then ping and bookmark.