http://www.petcurean.com/coupon

http://petresearch.com/ or https://www.facebook.com/PetResearchInc/app_190322544333196

https://www.facebook.com/beneful/app_355827794445303

http://berganpet.com/prudence-free-sample/ -Update-they’re having issues. I’ll update when it works again

https://www.facebook.com/HillsPetUS/app_301889886597107

http://store-us.cloud9forcats.com/products/free-sample -click add to cart and checkout -working again

https://www.facebook.com/beneful/app_128722593950957-you have to upload and share a photo

http://www.startsampling.com/sm/Sheba102813 -copy paste the link -still available if you didn’t get it earlier this fall

http://rewards.kred.com/?option=com_pages&view=kred_perks&layout=fullpage&id=155 -you have to connect with Twitter or facebook and have an Influence above 300 and an Outreach above 1. It seems you just have to be fairly active on one of those social networks to qualify. There seems to be an issue with verifying your email at the moment, hopefully they’ll fix it soon.