eWeek.com: E-Commerce Sites Aren't Too Social...

Opinion: Social networking sites have little influence on e-commerce, says JupiterResearch.

From an article by Evan Schuman, editor of CIOInsight.com's Retail industry center, on eWeek.com: E-Commerce Sites Aren't Too Social

Ecommerce Facebook Applications: Yes, you do need one!

A large part of Facebook's rise, has been its platform, an 'open source' policy with regard to the creation of Facebook applications. The result has been twofold: A huge demand for fun and informative applications and the corresponding, explosive proliferation of applications created for the site.

From Practical eCommerce:

Ecommerce Facebook Applications: Yes, you do need one!