BzzAgent

BzzAgent is a word-of-mouth media and marketing company (they send you products which you are then expected to spread the word about to your friends, families, neighbors, etc). You sign up and become a Bzz Agent. You then fill out an extensive list of questions so that they know exactly which of their Campaigns are best suited for you.
After being invited to a Campaign, you accept it, and wait for them to ship you your items. Sometimes it's a full-sized product, sometimes it's just samples and coupons, but whatever you get, it's free. You don't pay for shipping or to participate in any of these Campaigns. You are expected to write a report on who you shared the products with, what their reactions were, and the overall capabilities of the product. These reports are graded, so you want to be as detailed as possible.
There are different "levels", which you earn by reviewing products, submitting a report for a Campaign, and taking post-Campaign surveys. A high-status means having priority during the selection of who to send samples/products to and getting early invites to Campaigns. So chances are if you just started out, you won't be immediately invited to a Campaign.

I've been a member since 2009, and have had no problems with BzzAgent. Everything is free. The most intrusive question they ask is your name and address (how else would they send samples to you?). I'm not on BzzAgent as much as I'd like so my rank is very low, which is also why I don't get invited often to Campaigns.
The 3 Campaigns that I have been invited to are: CoverGirl NatureLuxe foundation & lip balm (around $20 worth of products), Burt's Bees acne solution set (around $20 worth of products), and Johnson & Johnson's various Spring Edition products (around $30 worth of products). Each came packed with full-sized products (and coupons and smaller samples to give away).

This website is definitely not a scam; just don't expect to be showered with samples soon after you join.

Am new bzzagent i gut my frist bzz kit in 3 weeks u have to answer all the survays and be active evrry day am mycarman100 new bzzagent i gut my frist bzz kit was from innova evo dog food grain free with chicken and turkey i did my revie on the bzzagent web cite then i post my video i made on my bzzkit i posted it in facebook and twitter gues what hapend after i posted it in twitter ophra winfry seen it and liked it she favored my revie yes opra winfrey i cant get ovear it my dog braks for innova evo dog food she loves it

I love being a bzz agent, fun free items and great service.