BzzAgent is great! A friend of mine introduced me to it. You get to test products, many of which have been around for a long time but the companies need to know how consumers feel about the products every now and then. They have BzzAgents hit up their friends and family to get an insider feel for their products to see what they can improve on.
When your a BzzAgent, you will receive a Bzz Kit and sometimes it comes with a product and coupons to give to your friends. Other times, you will receive a coupon for a free item (because it's not mail-able) to test out.
It takes just a few minutes of your time to log into BzzAgent to review these products and for your time, you get to keep these free items! You earn a Bzz Score and the higher the score, the more campaignes you will qualify for. When you sign up, be sure to answer all of the surveys so they know your likes and dislikes. Be patient. They will email you with campaigns that fit your profile.
Here's a sample of the campaigns going on right now: