71.   Most online stores find other companies to hold and ship their goods.

72.   Now it is developing a suite of services for businesses, including advertising, e-mail and online store software, built on its vast store of data about users.

73.   Of course, online stores do not have to invest in all those shops.

74.   One of the companies is Borders Inc., which operates Borders and Waldenbooks bookstores and an online store, www.borders.com.

75.   Online stores handle customer service and fulfillment.

76.   Only recently, the online store had trouble responding to e-mails and telephone calls in a timely fashion.

77.   On Monday, Hallmark Cards Inc., Egreetings Network Inc. and Blue Mountain Arts had trouble answering the doors to their online stores.

78.   Other retailers that have set up separate companies for their online stores are taking a more conservative approach.

79.   Other manufacturers have been keeping online stores from selling their goods simply because they want to cut out the middleman and sell their goods themselves.

80.   Over the last year, Andreessen has made personal investments in Replay, a company that makes digital video recorders, and Accompany, an online store.