Bing shopping with its double cash back promotions is slowly gaining market share against 12 other comparison shopping tools. Comparison shopping tools included in the Hitwise report by their market share are shopping.yahoo.com (23%), bizrate (16%), shopzilla(14%), bing (10.86%), nexttag(10.34%), best-price, pronto, become, shop and pricegrabber.

Detailed report and data is available here.

What is Bing cashback?

If you are new to Bing and the whole 10% to 25% discount process. Here is the cheat sheet. eBay partnered with Microsoft and whenever one searches some keywords like say “ipod” – the eBay links come up in search results showing different Bing cashback discounts.

Cashbackr.com is one such useful handy website to find the keywords and the availble % off discounts.

Here is currently available eBay Bing keywords and the discounts numbers from Cashbackr.