I need 500 products from e-commerce sites "pinned" (added) on pinterest.com.
You need at least 10 Pinterest accounts. Pinning (adding) to be distributed over the 10 accounts.
To get a pinterest account you need a Facebook or Twitter account, so they are easy to get.
I will give you a spreadsheet with the URLS of the products to be added. You need to add the product title when you add the products.
Milestone of 75% when you have pinned products and 25% after 7 days to make sure that they are still there and they have not been deleted.