All programs introduced have been online for a while and have proven to pay out.
However, any online business bears the risk of loosing money, some sites go offline and will not be available anymore.
Be advised not to spend money which you can't afford to lose.
PTC and Revenue Share
Always contact your upline, ask for proof that they still pay, some like NEOBUX and ADSPAYPRO, will last long some disappear within 6 - 12 month, so always connect with your sponsor ASK. For example via Skype or Email do not just trust information posted at Facebook or Forum pages.
Mailers and Safelists and classic Traffic exchanges
The risk to lose money while promoting those and using them for your own promtions is close to ZERO. If you like to start with safe and successful mailers, join TESTED and PROVEN, upgrade the mailers inside the DLB and promote them all at once. That opens multiple income Streams.
Wanna play save? Promote mailers and safelists with TAP.
Don't go out with strangers
my alternative article about how to avoid being scammed