Adam Ginsberg knows eBay. That's quite an understatement -- Adam Ginsberg was one of the first eBay sellers to reach the highest level -- Titanium Power Seller. He has sold more than $20 million through eBay alone and has been featured on national media. Businesses routinely pay him more than $500 an hour to provide consulting advice and marketing tips. So what does Adam Ginsberg know about eBay selling that you don't?

He knows that a niche market means a huge market -- a market that can make you affluent online and in the real world. Becoming a specialized seller and an expert in a specific industry on eBay helps build buyer confidence and helps ensure that you get the money you deserve online. Plus, once you become an expert in a specific product or service, you can make use of several types of online moneymaking opportunities in order to make more money. Once people start associating you with a specific product or service, they will start seeking your online -- and start throwing money your way.

Even if you start out with eBay selling by selling all the old items in your attic, consider what really interests you and what you are really good at selling or promoting. Do you love flowers? Books? Airplane models? Personal advice? Maybe all the stuff in your attic is related to one thing -- such as stamp collecting. Once you've figured out a specific niche for yourself, establish yourself as an expert seller:

1) Publish in your field. If you're interested in a product or service, you probably have lots to say about it. Consider publishing articles online, in newspapers, or even consider publishing books about the subject. This will set you up as a subject expert and will make more people turn to you for their buying needs. Plus, anything you publish online can link viewers to your website – and on to your eBay auctions – so that you make more money.

2) Set up an online presence. Set up a blog, web site, or other online presence where you can talk about your specific subject and products. It not only gives you another place to sell your products, but gives you an online space where you can make use of affiliate marketing and Google Adsense to make even more money. Plus, now that you're an expert in the specific field, each of your income streams will play off each other. EBay buyers may come to your web site and buy more and web site viewers may go to your eBay auctions to bid on your products. The bottom line? You get more cash. These are the actual techniques that Adam Ginsberg has used to generate millions of dollars in sales on eBay. If he can do it, so can you. You can get more tips from him by visiting his web site www.adamginsberg.com.