I create Facebook accounts using a different email for each and 'liked' all the quilt related sites, shops, manufacturers, blogs, magazines, books, etc. That's all you have to do, the give aways will be posted on the page. I have a personal page, quilt page, shopping page for grocery coupons, recipes etc. It's easier to have pages separate so I don't have to scroll through all the posts for different interests. You can have as many free email accounts you want using free online email like yahoo or gmail.
The biggest give aways are from quilt magazines.