Let me know more about your expectations from the Signature or Bounty campaign. Because right now there are many signature campaigns running in the services tab of the Economics Board and also you can find under bounties section of the Altcoins Board. You can also visit free airdrop section if you are aiming for some profits through bounty program. EVen myself use both bounty and airdrop campaign for getting a good profit out of it and I recommend you also to follow it.