1. SVERVE: A more recent way is Sverve. You sign up, create a profile, and select areas of influence (example: parenting, reviews, giveaways, DIY, gardening, food etc), and start connecting with people of similar interests. You can see a list of "campaigns" available and apply for those that interest you. Most have a compensation of $20-$75 each for writing up a product promition, or sharing information on a giveaway. EASY!!! Click badge below to start!
2. If you don't mind taking a survey or two from time to time, joining Focus Pointe Global is a great way to see if you qualify for paid focus groups in your area. A ten minute survey will tell you if you qualify, followed by a call, and then you're booked for a spot in the focus group. Many focus groups take place at night, so you can do this in addition to a day job, or get a break at night when your partner comes home.
3. Sponsored Tweets. Similar to pay per post. Create account, link to twitter, and start getting offers to tweet for income. Once you hit $50, they'll release your payment.