It really depends on your business/service/product. I'll answer it the question as though to most small businesses (80% of the market). Ezine ads sell the best. Banner ads sell second best but usually to your suppliers, partners, etc, and many times they're looking for a "trade"... you pay me $50/month and I'll pay you $50/month for banner on each other's web sites (not bad when you consider it's free marketing AND in most cases it is a tax deductible advertising expense). Text links work well if you have a blog and you write "stories" for your site (always a good idea to keep your web site fresh) but here is the key. You sign up for affiliate programs and make the text links live in your "story" and they act as "professional referrals" to your visitors. You'd be surprised how many times they are clicked on. To get your ezine going and working well for you, work hard on making every advertising expense you have to include your web site address. Drive new customers AND existing customers to your site and start asking for their email address. Your ezine provides them with something valuable to them and make it good content so they actually look forward to it. I can't tell you how much your ezine can be worth to you but I can say it's worthless if everyone that receives it ignores and deletes it. Make it interactive. If you need more help or have other Internet marketing questions, please feel free to email me.

If you want to see which type of advertising works for your website try these http://www.pageoptimiser.com/Targeted_Traffic.htm free advertising codes you can then test them using search results contextual or text links advertising before you fork out your own money because every sites angle is different and you want to make sure your pulling the right traffic that you can profit from without spending a fortune on testing. Most of them you can sign up for a new account for every website you own which is really great.

Banner ads mainly (flashing, animating, floating annoyances).

Pictures of vegetarian girls with big tits seems to sell well on websites, or any site for that matter.