"YellowPages.com is a good mass-market site and local business directory, " says Krantz.

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Mostly, though, I just let my local pictures directory randomly throw a slide show up on my idle computer screen, surprising myself with digital snaps, downloaded art, and carefully scanned prints from yesteryore (memories nearly lost).

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Similarly, in Egypt, another woman created an online directory for local nurseries.

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Though Nextdoor is currently free of advertisements, the site plans a directory of local businesses that could link to user recommendations, like a Yellow Pages-Yelp mashup.

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Once upon a time, before smart phones or even the Internet, a book called the Yellow Pages was the go-to directory when it came to finding local merchants.

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