it with the passive earned Bitcoins! You can cash out your earnings on a direct Wallet or to Faucetpay and the minimum is 5000 Satoshi. Gra BTC has many monthly Contests running for Referring, Offerwalls, and Shortlinks and they are one of the most attractive in the Industry with over 1000 $ / BTC in monthly prizes! Also, their Achievements section is something special as you can get rewarded for Goals you reach like for Example for Referring Friends or Claiming on the Faucet and the prizes are crazy!
The PTC Ads section is similar to the CoinAdster & MoreMoney PTC sections as all these sites are using the same Script which is pretty cool as you don't need to learn anything new if you are familiar with one of the mentioned Faucets.
Shorting Links is pretty easy but not really paid well but you can participate in the Shortlinks Contest which increases your earnings dramatically if you manage to place in the prize spots.
The Offerwalls listed are AdGate Rewards, aceT-Studios, AdGem, Yunno Surveys, TheoremReach, OfferDaddy, Personaly, Pollfish, Wannads, Wannads Survey, KiwiWall, OfferToro, AdWorkMedia, CPALead, JungleSurvey, BitsWall, and SkippyAds. The Admin is updating this section constantly and new Walls coming every Month.