Once you have your website built you want to make sure that you increase conversions on your ecommerce site. Creating product pages can be tricky and cumbersome. You want to provide the best visual experience while at the same time getting your product message across.
Econsultancy put together a post of 10 essential features for creating great product pages. The 10 features may not all be needed or plausible for every site. You will need to test them and see how they improve metrics on your website. The article does give a nice breakdown of each feature and can be used as a guide for those especially new to the business of developing ecommerce websites.
The article in my opinion is a must read for anyone "stuck" in their development process or frustrated by a lack of stickiness to their site.
The article looks at features such as user reviews and product videos, it provides actual case studies and what is working for some retailers including QuikSilver and Comet.