Ebay is perhaps the largest company to embrace the local buying trend, allowing users to filter by ZIP code to find local merchants.

易趣也许是支持本地购买趋势的最大公司，它使用户能够通过过滤邮政编码找到当地商户。

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Select Comfort bought ads in local newspapers, which instructed users to send the company an SMS message with their zip code.

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The company currently publishes over 10, 000 zip code market and neighborhood level real estate reports a week off a single raw real estate data feed.

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The company has not only a large user base but highly targeted demographic information about its users including age, gender and zip code that is sought after by campaigns.

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