Very interesting title right? Do you have a product or a PDF file to share or give it to your subscribers for FREE, then atleast get something something from your subscribers before you get them to download your pdf. One such thing is get a tweet or a facebook share on their profile in exchange for your free pdf or product. Now you can sell your product or any pdf files to your subscribers. If you are wishing to give away your hand written products to your visitors for free, then in exchange you can get a tweet or a fcebook share. This can be done using Estago.

It a very easy to use tool, you can now giveaway your product in exchange for a tweet or facebook post. When ever visitors download your products they will be paying with a tweet or facebook post.

Easy to setup:

• I hope you have a website to promote your product and good amount of traffic, otherwise prepare a website.
• Use their form to sell the product, and enter the details of the product and the download link. The form enable you the visitors to pay a tweet or facebook post for your product.
• Submit the details, and place the button anywhere you like on your website.
• Start selling your products with a tweet and facebook post.

Benefits

• Establishment of long relation with your customers, and paying through a tweet in a way is getting a RT for your post, so I think you can imagine the hype by re-tweeting. 
• Sit back and watch your traffic tremendously increasing.
• The whole idea is total different.
• Another great thing about it, is that if you have an adsense account then you can even pose your ads when a dialog box open.(available for premium users)

I take this opportunity to tell my blogger friends to try this and use it for their free giveaways and let the visitors pay with a tweet or facebook post.