Two great sites I use all the time are
You apply to host a party for a free party package! I have hosted close to 10 parties since I started! Green Works, Oscar Mayer, Digiorno, Wizards of Waverly Place, and Pull ups are some of the brands I have showcased from this site! Loooove it!
Bzzagent is all about spreading the bzz! They send you items to review and share your experiences with others! Sometimes they even send items to share with others and coupons!