@RiskyAug 22.2014 — #It depends on the number of products you are offering. You must choose long tail keywords with low or medium competition but high searches.
@omthavertchAug 22.2014 — #yes agree with the risky that its depends on the products and type of products such as the keywords for electronic items,keywords for the man,woman and child clothes,keywords for the home appliances etc
@AvniShergillAug 25.2014 — #There are not predefined number of keywords, which you need to target for your website. You should avoid targeting lots of keywords, try to go for 2-3 keyword per page which is related to your website and products. And also go for long tail keywords, as they are easy to target.
@alexjames212Aug 25.2014 — #Yes, go with long tail keywords and see that you focus on sorting out the number based on the number of unique products that you have on offer.
Follow the google algorithm rules, use white hat technique to avoid penalization. Use 6 to 8 business keyowrds, for product wise you can do product related keywords.