Buying and Selling
-ebay
What once started as a small little known website has now turned into an internet monster. If you are looking to purchase anything at a competitive price then this is the site for you. Ebay also allows you an easy online payment method through paypal. If you are interested in setting up shop, then get an ebay account and hold your own auctions as you watch your bank account grow!
-CraigsList
If ebay is not for you then try the alternative CraigsList. This site allows for individuals to buy and sell from each other without having to deal with the hassle of holding auctions. It is a great way to get started in the online buying/selling world.