http://www.vpngate.net/

For those relay operators who may have extra
non tor listed IP addresses and want to help
a related projects / userbase.

https://geti2p.net/

I2P also has an exit proxy function.


"
VPNGate:

Free Access to World Knowledge Beyond Government's Firewall.

VPN Gate Academic Experiment Project is an online service as an
academic research at Graduate School of University of Tsukuba, Japan.
The purpose of this research is to expand the knowledge of "Global
Distributed Public VPN Relay Servers" .

You can take these advantages by using VPN Gate:

You can get through the government's firewall to browse restricted web
sites (e.g. YouTube).
You can disguise your IP address to hide your identity while surfing
the Internet.
You can protect yourself by utilizing its strong encryption while
using public Wi-Fi.

Unlike traditional VPN services, VPN Gate can get through most firewalls.
VPN Gate is free of charge. Not a single registration is required
"

"
I2P

I2P is an anonymous overlay network - a network within a network. It
is intended to protect communication from dragnet surveillance and
monitoring by third parties such as ISPs.
"