There should be no vagueness in your prices and products. Products hav to have clearly mentioned prices. A money back guarantee offers buyers the feeling of ‘I have nothing to lose’. Currency conversion facility helps. Remember it has a global reach. Offer both Paypal and credit card options. Many people don’t want to offer their credit card details, so they might prefer Paypal. The transaction has to be secure.   You want your customers to buy more           Have a thank you page after clients buy your   goods. Here you can offer         more products. Collecting emails is the mainstay of business. It is like a milking cow. Once   you get email address you can send offers in your monthly newsletters. If you have nothing to offer now, at least offer a promise to offer information on a priority basis, in the future.  http://www.awebger.com   This is called affiliate marketing. Your site has a link to the vendor’s site where the surfer needs to buy. Although amount earned can be large, you only earn if the surfer clicks the ad and buys their stuff. In practice individually contacting and confirming your site to advertisers is very difficult. You need a site that does that for you. You just need to copy and paste their code in your site. http://www.clickbank.com                                                                              

The advertiser pays you when somebody clicks the ad in your  space.  http://www.chitika.com http://www.googleadsense.com