Stumble Upon is a bookmarking social networking site with over 5 million members (called stumblers). eBay acquired SU back in April, 2007.
In a nutshell, users download a toolbar that allows them to stumble, or rate web pages they find on the internet. When a site is stumbled, other members see it, visit it, and may also rate it. The site has a very high “hit rate” as new content is constantly being added.
More and more entrpreneurs are using SU for business purposes. eBay sellers can use Stumble Upon to promote their eBay stores and listings. You can stumble your …read more

Yahoo Answers is a feature found on Yahoo where members can ask and answer each other’s questions on just about any topic imaginable. Creative marketers have figured out how to use Yahoo Answers to direct traffic to their eBay listings and increase their sales.
So, what is the strategy? Answer questions in your field of knowledge or that relate to the products sold in your eBay store. For example, if you sell cosmetics in your eBay store, answer questions regarding skin care, makeup or fashion. If you sell pet products on eBay, answer questions about pet care, pet grooming, obedience …read more