The BarkBox subscription service for dogs provides a $5 discount for new members and a free gift box for current members via the BarkBox referral program.
Update: $25 New Crowdtilt Member Bonus – New Crowdtilt users can now get a $25 bonus for starting your first campaign.
Join the Crowdtilt crowdfunding service for free to get a $20 bonus toward your first campaign when at least 3 friends donate a total of $50, plus get $20 for referring your friends to start tilting.
Evernote is a free organizational app that helps you remember things from your everyday life using your computer, phone, tablet, and the web.
Evernote is free to use, but when you participate in the Evernote referral program, you and your friends can get access to Evernote Premium upgrades for more exclusive features.
Try out Next Issue for a free 60-day trial of unlimited digital magazine access including Motor Trend, Rolling Stone, Elle, Essence, Details, and many more.
Plus, you can earn up to 650 Virgin America Elevate points when you become a new subscriber, and you can earn $15 gift cards when you refer your friends.
Rover is offering a free $25 coupon to use toward your dog’s first in-home dog sitting stay that is booked through Rover.com, plus you can participate in the Rover referral program to earn $20 credits toward pet sitting services.
The Handybook home cleaning and handyman service offers a $25 discount for new customers and a $25 credit for current customers via the Handybook referral program.
The Barclaycard Arrival Credit Cards will potentially be getting a new card member referral program soon.
The HeadFunder crowdfunding service offers current members a 10% bonus when you refer new members who complete a successful crowdfunding campaign.
Fitbit offers anyone a $10 bonus when you refer someone to purchase a Fitbit Tracker via the Fitbit referral program.
Storefront has launched its retail space marketplace in Chicago and is celebrating by offering a free $50 credit to new customers plus a $50 credit to current customers who provide a referral.
The Hoopla Doopla cash back shopping rebate network offers current members 20% of your referral’s earnings for the lifetime of their membership.
The Best Miles Brokers referral program offers current clients a cash bonus for referring your friends to sell their miles or rewards points.
SilverJewelryClub.com offers $5 in store credit for each new customer that you refer to purchase quality jewelry at incredible discounts.
Refer your friends to get an American Express card to earn extra bonus rewards.
Updated 6/2/2014: American Express has increased the Starwood consumer and business card bonuses for new members to 30,000 Starpoints.
The new Google Apps for Business Referral Program offers you a $15 bonus reward for every user that signs up for Google Apps for Business via your referral link.
Google Apps is a cloud-based productivity suite for your business that helps you get work done from anywhere on any device.
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 5 bonus credits through the Bing Rewards referral program for each of your friends who joins and reaches Silver Status.
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.