howto advertise a website for free?

[Bobby]

Seo or search engine optimization will get your ranking up on search engines, and this does help, but this is not true advertising. Google Adwords is good for advertising but not if you do not want to pay any money, so I would recommend that you use free class field ad sites like usfreeads.com These sites rank well on search engines and are searched themselves by real people looking for things. You could also set up a free blog at blogger.com or wordpress and then rank your blog for keywords in the search engines, for things that relate to your business but would not go on your website (the more back links you have the better). The blogs would then link to your main website, and give you free traffic. This technique also works with article marketing (blog marketing but using article directories.)
Hope I could help, send me an email for more info on any of this stuff.