There are many way to earn money from internet by PTC site.
But this are the best-

1. https://www.neobux.com/?r=srtoslim
Member benefits
- Effortless income
- Earn from home
- Guaranteed ads daily
- Detailed statistics
- Upgrade opportunities
- A dedicated community
- AdPrize + Offers

2. http://wad.ojooo.com/register.php?ref=srtoslim
Member benefits
- Huage ads

3. http://www.qbitbux.com/?ref=SRToslim
Member benefits
• Earn up to $0.01~$3 daily.
• Guaranteed Return Membership.
• Guaranteed returns up to $1440.
• Fast&secure Withdrawal.
• 8% purchase commission.

4. http://www.clixsense.com/?7320946
Member Benefits
• Browser Toolbar With Instant Notification of New Ads Available
• Earn Up To $0.02 Per PTC Ad Click and Up To $0.008 Per Referral Click
• Earn Even More With Our Affiliate Program
• Payments Via Check, PayPal and PayToo
• Win ClixGrid Daily Prizes and Participation in Weekly Contests
• Unlimited Direct Referrals and Guaranteed PTC Ads Daily