SwissVPN is a service that provides VPN access to the World Wide Web. This is quite easy and comfortable way to get to the Internet anonymously. And on the other hand is quite cheap (just 5$ per month). Every time you’re establishing connection to that service it gives you distinct IP address.
I used it for several crawler projects. If for instance web site uses captcha after intensice usage to ensure that a user is a human one, you can allow your robot to reconnect to that site through another VPN connection and get another IP address.
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