The Dropbox referral program offers both parties 500 MB of free online storage space when a current user refers a new user who joins and installs Dropbox on their computer.
Current Bing members can earn 500 bonus credits through the Bing Rewards referral program for each of your friends who joins and reaches Silver Status.
Update: You can now redeem your Bing Rewards credits for airline miles and hotel points from popular travel loyalty programs.
Learn how to earn Bing Rewards Referral Bonus Credits and sign up for the free Bing Rewards program to earn credits for searching on Bing.
Kiva.org currently has a refer-a-friend promotion where each person signing up gets $25 free to make a loan.
Updated 4/23/2014: Kiva is giving away codes to lend $25 when you Retweet This Message on Twitter for a limited time. Just Retweet the message, and they will DM you a code.
Take advantage of this Kiva.org $25 Loan Offer to make a free loan to small business owners in need around the world.
The Boatbound peer-to-peer boat renting service offers new users a free $25 credit toward your first boat rental, plus you can earn up to $100 in boating credits through the Boatbound referral program.
The Isis Mobile Wallet application is now offering a $10 bonus for both new and current customers through the Isis Mobile Wallet referral program.
Fancy Hands offers half off your first month of personal assistant services, plus your first request is free, and you can earn a $15 referral credit for every new customer that you refer.
Fancy Hands is an online personal assistant service based in the USA that can help you complete numerous tasks from scheduling appointments and checking reservations to researching blog posts and proofreading articles, plus your first request is free.
The SpotHero prepaid parking service offers a $5 referral bonus credit to both parties to use toward parking in major cities.
Take advantage of the SpotHero Referral Program to get an instant $5 credit toward parking for new SpotHero customers as well as $5 for every new customer that you refer.
The Ibotta shopping reward app is offering current members a $1 referral bonus for each new Ibotta user that you refer.
Plus, new users will also receive $10 in Ibotta Welcome Bonuses just for using the Ibotta app, so everybody wins.
FatWallet is offering up to $1,500 in special referral bonuses when you refer your friends to the FatWallet cash back shopping network.
The FatWallet Cash Rebate Network allows you to earn cash back for shopping online at popular merchants, plus you can earn special bonuses for referring your friends.
The Coin credit card management device is offering a $5 referral program bonus when you refer your friends to get a Coin.
ShopRunner members can earn up to $10 for each new paid membership that you refer to ShopRunner, plus new members can get a free 30-day trial.
Check out the ShopRunner Referral Bonus Offer to earn some extra cash from your ShopRunner account.
Upromise is offering a $5 bonus for new members upon joining, plus current Upromise members can get a $5 bonus for each new member that you refer through November 25, 2013.
Check out this Upromise Referral Program Bonus for the Upromise college savings program.
The BeFrugal cash back shopping network offers current members a $5 bonus for each new customer that you refer to BeFrugal who makes a qualifying purchase.
Participate in the BeFrugal Referral Program to earn $5 for referring your friends today.
More Cash Back Referral Programs
Ebates Referrals – $10 gift card for new members.
Extrabux Referrals – $5 sign-up bonus for new members.
Mr. Rebates Referral Rewards – $5 new member bonus.
The Hulu Plus referral program offers both current subscribers and new customers 2 free weeks of Hulu Plus.
Check out the Hulu Plus Referral Program to get a 2-week free trial of Hulu Plus for new subscribers (instead of the usual 1), plus feel free to post your Hulu Plus referral links in the comments of this article.
Amazon.com is offering any Amazon customer a $10 credit for each friend that you refer who joins Amazon Mom and receives an order for $10 or more.
Just refer your friends to join Amazon Mom to get your $10 credit.
The iStockphoto referral program allows current customers to earn cash rewards or credits when you refer new customers, plus new customers can earn 10 free iStockphoto credits when you sign up through a current customer’s referral link.
iStockphoto offers millions of royalty-free photos, illustrations, videos, audio tracks, and more for a wide variety of uses including your website or blog.
Check out the iStockphoto Referral Program to get free iStockphoto credits.
The Amazon Student referral program has increased the bonus amount to $10 for a limited time.
Check out this $10 Amazon Student Referral Bonus that is available to all Amazon.com customers.
The LivingSocial Me+3 promotion offers your LivingSocial deals for free when you buy first, and then share the deal with 3 of your friends.
Learn how the LivingSocial Me+3 Program works to get your LivingSocial deals for free.
The Keurig.com referral program offers both parties 2 free boxes of Keurig Brewed beverages when a current member refers a new customer to purchase a Keurig Brewer.
Participate in the Keurig Referral Program to get 2 free boxes of Keurig beverages when you purchase a new Keurig Brewer or when you refer your friends, and anybody can refer someone, whether you’re a current customer or not.