advertising sites...let me see...
i work for
www.safariquip.co.uk as the primary webmaster of the site, therefore i'm EMPLOYED to do this sort of thing. they pay me to make their site more visible, to get more uniques, and keep people coming back.
the site is still in the development stage, the the primary goal is search engine optimisation. without this anything else is meaningless. you'll never ever get the same amount of visitors / hits from word of mouth as you will do from a 1st place rank on google for whatever your target keyword is.
choose your keywords carefully, optimise your site, get it primed with good content, and THEN begin the advertising.
get reciprocal link exchanges with reputable sites, sites that compliment yours (ie we have links from rock climbing sites because the same sort of people that go rock climbing go on adventurous holidays). this will get you automatically included in search engines as you will be spidered through these links.
furthermore, submit yourself to search engines. this will help you again to get spidered.
ensure your site has good navigation and plenty of content so that you are SE friendly.
advertise by word of mouth, perhaps start an affiliate scheme when the money begins rolling in to boost traffic further.
write an ezine about your sites subject and get it published in a popular internet newsletter. doing this can get you thousands of uniques if it is a highly popular letter and the article is good. keep the copyrite of the article so that you can get it included in more than one ezine.
get a press release out to anywhere you can to tell people that your site is in existence, a brief description, and where it can be found.
update your content all the time.
post regularly on forums etc. with good, helpful advice so that you build up a trust relationship with the other members. if the forum is about your subject, so much the better. add a link to your site into your signiture, and people will follow that.
the basics...
Most Vital - #1 Content Building
2 SE Optimisation
Money Making - 3 SE Inclusion
4 Link Exchanges
5 All the rest