Can someone explain what are HTTP proxies and how they work? or What are HTTP proxies and why would I

what are http proxies? They’re basically a go-between for you and the web. You connect to the proxy, and it connects to the site for you.

Uses? Privacy (sorta), bypassing filters, or even testing how your site looks from different locations.

If you’re new, play around with GeoSurf or Luminati. But again, free proxies = risky biz.