E-commerce is considered an excellent alternative for companies to reach new customers. Many e-commerce websites have a short life. The success of these virtual stores depends on many issues, especially their quality, as it is such a complex solution. This paper shows the users, quality evaluation of three virtual bookstores, according of a software quality evaluation model. The obtained results on the evaluation were compared to an established Quality Standard for e-commerce websites in order to define the attributes that have reached the Quality Standard and those that have not.