Surffc Private proxies are now known as USA Proxies.
USA Proxies provides shared and exclusive proxies. Their shared proxies are never used by more than 15 users which sets them apart from every other shared proxy provider who don’t set any limits on their proxies.
All proxies (whether they be shared or exclusive proxies) sit on a 100Mbit unlimited Internet connection, and there are never any bandwidth restriction imposed on the end users.
These proxies are perfect for applications such as Scrapebox and Xrummer, and can be used for any legal purpose with the exception of Twitter.
You can order directly from the USA Proxies site, however it seems that only Paypal is accepted for now.