Swagbucks is a great 'Paid to Search' program.
Random
 searches give you swag points.   Points can be traded for gift cards to
 places like Target, Amazon, Paypal and iTunes and many more. Sometimes 
they will post free swag codes that will give you free points.    They 
give you 
Swagbucks
 just for signing up and 50 more when you have a birthday!  And if you 
refer your friends, you win what they win, up to 1,000 bucks! I replaced
 my regular search engine with 
Swagbucks 3 years ago and I'm earning gift cards every month! 
Since
 searching is something I already do I'm calling this a "Passive Income 
Stream".    I've got a lot to say about passive income, but that will be
 a post for another day.
 HERE ARE six WAYS TO EARN ADDITIONAL BUCKS:
1.  Check out this site daily for free
 Swagbucks codes to help you earn rewards faster, 
Swag Codes.  
2.  You can earn 10 
Swagbucks
 for every coupon you print and redeem at your local store.   Just click
 on the “Earn” tab at the top of the and then click on “Coupons”
3.  Watch short videos while you are multitasking.  Click on 'Watch' at the top of the  
Swagbucks home screen to pull up the Swagbucks TV page.
 You have to watch 10 different videos (they range in length from one 
minute to five minutes) and then you’ll earn three Swagbucks.
It’s a 
simple way to slowly rack up some extra points, so it’s 
definitely a great way to multi-task while on the computer.
4.  Play the games, there a dozens of games under the 'play' heading that pay out 
Swagbucks.
5.  Take a SURVEY under the 'Answer' heading, you can also complete small tasks here or answer poll questions.
6. 
 Here's something I just learned today: Every day, you can go to the No 
Obligation Special Offers section (click DISCOVER then NOSO)
 and skip through all the offers (sign up if something interests you, 
but skip those which don’t interest you). At the end, you will be given a
 simple phrase and that will earn two 
Swagbucks. From start to 
finish, this will take you no more than 20 seconds and you can do it 
every single day!
The way I see it - you don't have to work hard for it, to me it's worth it!
Here's a link to sign up for 
Swagbucks.