These may notify you when product is in stock. Tailoring based on past user behavior. Tailoring based on behavior of other users with similar preferences. Personalization by user. Tailloring by site.
Site offers freeware which user can download and use for work and give to friends.
Site content is presented with no means for user to respond. Bizrate runs banners on participating online organizations and get feed-back for rating purposes. Accrue Software Inc. ran online seminar with two-way give and take. Live customer service and sales. Links to Sites.