Who they are?
All of them good as for customers (followers , subscribers) and as for signal delivers (providers).
I'll try to describe each of them separately.
1. C2 (Collective2) site
"Collective2 "went live" in 2003. Over the past seven years, we have audited over 11,242 trading strategies. We are based just outside New York City, and are subject to U.S. laws and regulations. We are registered with the National Futures Association as a CTA. Our web site is used by over 37,000 registered customers. In the past 7 days, our customers have executed trades in the amount of over $89,077,462* based on Collective2 trading strategies."
2. ZULUTrade site
"Founded in 2006, ZuluTrade has become one of the major autotrade destinations worldwide.
- Over 30,000 live registrations.
- Over 19 billion trading volume for 2009.
- Over 1,200 traders to autotrade.
- No need to have your PC on."
3. Rent A Signal site
"You will find thousands of classified and evaluated FOREX trading systems which include live and computerized online trading advisers.
Investing in Forex has never been easier. With our vast selection of online investment signals, our exclusive Signal Performance Indicator and our Signals Search Engine, you can easily subscribe to the signal that best suits your investment needs.
Although you may choose to continue working with your current broker, you also have the option of working with our partner brokerage companies that offer you the best terms and conditions available in the market."
What is a difference?
A main differences are in site platforms.
Collective2 doesn't accept hedge orders. Also trade stocks, futures and options.
ZULUTrade accept max 30 orders per day. It accept hedge.
Rent A Signal (RAS) accept everything.
What is good for all of them?
All those sites has thousands of very different systems you can choose.
All of them has auto trade possibilities - so customers do not need spend time to follow the systems.
Every customer may choose as many systems as they like and make own portfolio.
For some of system subscribers doesn't pay a penny!
And much more...
So, just select your own broker (which one may accept hedge orders and using a mini or micro lots), select best of your choice one or few different (profitable and near zero correlations between them) and enjoy the results as rare as you like.
Nobody need to build VPS (and pay for it), configurate or buy EA's, pay attention and time every hour or even every day (week).
For system creators it is very easy build a bridge between them trading platform, EA's and those sites. Tens of thousands customers awaiting for great system developers!
That's it. Enjoy!
There are I find a few more signal system delivery, but it is much harder working with them:
If somebody use another same sites please let me know!