ReferralMagic is an easy-to-integrate and affordable referral tracking software made for SaaS websites. Convert your existing users into new user acquisition channels quickly with ReferralMagic.
If you want to run a retweet contest on Twitter, but you don't want to signup and put it your Twitter login on a shady website, just use luckyretweet.co Just paste your tweet and click "Draw". Simple as that!