Getting paid to read emails and take surveys can be quit intimidating. There are many scams out there. There are good companies out there though. Here are a few I have have tried.
InboxDollars offers a $5 incentive to join. It was easy to sign up and I instantly received my first paid email. I made a quick $6 so far. You make 1 to 10 cents per email you read. For every survey site you click and complete you receive $0.35 - $4.00. You are paid by check after making $30. I can see the potential already!
Hits4Pay is another great way to make a few bucks. You get $10 for signing up. Minimum payout is $25 and you're paid via PayPal.

SendMoreInfo is paid ad sharing. They send emails, you click the link, and get paid a portion of revenue once a month. The payout is $10 and it is by check.
Make an email specifically for paid emails. Keeping track of three or more companies can be tough when combined with regular email. Don't under estimate a few cents here and there. All of the extra money really adds up!

Making extra money online is easy. Be careful about scams and always read reviews before joining. I read a few reviews about these companies before joining. One review I liked was from MoneyMakingMommy.com.