Make Big money from Marketing product, services or content

Make money from Marketing/Selling
Amazon Affiliate Program - You can easily create a store or shopping section on your website instead of sending your visitors to Amazon. Amazon handles the shopping cart and other matters.
Amazon Seller - Sell your stuff on Amazon
Build a Niche Store - This is a simple store / website development platform which enables you to create content based sites that generate income through the eBay affiliate programs. Simple hassle free.
Cafepress - You provide a design, they'll toss it on a T-Shirt, Hat, etc. No upfront costs. Get a free online shop and promote your products on your website.
Chitika - Their eMiniMalls service has shown great results for many Bloggers and site owners. You choose a keyword and they show relevant products on your site using a pretty unique interface
Clickbank - They have thousands of things for you to advertise on your site. Simple and very easy to start with.
Commission Junction - If you have a website, you can join Commission Junction. Once enrolled for free, you can choose companies whose ads are pertinent to your site. Companies have the ultimate say on working with you. Fast and easy to start with.
eBay- Come on, you know what this is. Gather your junk and sell it!
eBay Stores - If you have a real store and want to sell your stuff online, this is a decent option to get you started.
ELance - Name gives it away. Programmers, Codes, Web Designers, Writers, Editors, can look for freelance opportunities.
Google Adwords - Create simple text ads and choose keywords that determine when they are displayed. This is where the Adsense Content comes from. You do not need a site for this.
innerSell - If you have a customer that wants to buy something you cannot sell, you can sell the lead here.
Jellyfish - This is a shopping site that pays you a percentage of the purchases made by people you refer. They are not part of a wider affiliate program so you do it direct.
LinkShare.com - If you have a site, you can join Linkshare. Once enrolled for free, you can choose companies whose ads are pertinent to your site. Companies have the ultimate say on working with you. Like Commission Junction, there are a ton of companies waiting to evaluate your site.
Microsoft Adcenter - Bid on keywords and Microsoft places your created ads then they are searched for. This is similar to Google Adwords. You do not need a site for this.
Overstock.com - Sell your stuff on Overstock.com
Shareasale.com - I've never really worked with them but I do have an account. They are similar to Commission Junction and Linkshare however they seem to have lower tiered companies with advertising offers.
Text Link Ads - You can earn by sending advertisers to them or by selling spots on your site. You must have a real site or blog to do this - nothing on a shared domain (i.e. /blogspot).
Yahoo! Merchant Solutions - This is a pretty simple and cheap way to create an online store.
CelltradeUSA: Refer your visitors to CelltradeUSA. I wrote about them , but they offer an affiliate program now. In short, if people need to get out of a cell phone contract, cell trade helps them by matching them with someone that wants to enter into a phone contact without all the fees.
Clickbooth - Clickbooth is a site that blog owners or site owners can join to place Cost Per Action ads on their site. It has a good base of advertisers and is similar to Commission Junction or Linkshare.
Rent-A-Coder: Take on a project, get it done and get paid. Rent-A-Coders doesn't get paid a thing until you do therefore it is in their best
Get A Freelancer: This site lists a ton of projects that need to be completed.Start your IT company from home, Get orders from this site and get the work done by the programmers from your friends circle. Grow to a billion dollar turnover company within in months. If you have the skills for any of these, Nothing can stop you from success.
Shopping.com - Add widgets to your site that display products based on keywords. If you spend a little more time and care, you can even customize the entire user experience by tapping into their API. There are sites with this installed so that we can not recognise it .
Sell your pictures: If you have a flair for photography and need enough cash, putting them online can make you some money. Check out fotolia or Shutterstock.
Tutor.com: If you are confident enough to help students in their home works , you can get paid like teachers online. Help a student in Algebra, Geology, or whatever.
Zilo: Setup an online store and never have to worry about shipping or inventory. ie. You have not worry about employees, shop, licensing , shop and municipal taxes. Just pay income tax, if any.They handle Everything for you.
DealDotcom: You get a 35% commission on things people purchase through your affiliate link. If they sign up people, you get a 15% commission on those purchases as well. This is a 2-tier affiliate program.