Follow this link .....
http://www.surfbtc.com/index.php?r=MIFTIYou maybe say that it's too little to earn 2.1 Satoshi per click, but if you check the timer, you will find that clicks are too fast, just 5 seconds between a click and another, and no Recaptcha. If you are active, you can reach more than 5000 Satoshi per day. Give it a try...