Your source offers US (and Canadian) postal code data as of May 2011, including lat/lon for USD79.95.

The project description sounds like a graduate level (PhD dissertation?) project. If this is indeed that, or, in fact, other than a self-funded project, one might think that a reasonable budget would include that kind of allowance for data acquisition.

If it doesn't, /methinks one would still * NOT * be entitled to steal data.

In reply to Re^3: Rotating IP Addresses for Scraping by ww
in thread Rotating IP Addresses for Scraping by jandrewc

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