GoUrl Official Bitcoin/Altcoin Payment Gateway for WordPress. Accept Bitcoin, Litecoin, Dogecoin, Paycoin, Dash, Reddcoin, etc. Payments Online
WP-Client Client Portal Management & Invoicing Plugin that gives you the ultimate in flexibility to integrate into your current site.
Lock file download access to the original purchase IP for Easy Digital Downloads
Creates a downloadlink with the browsers SaveAs dialog for all available filetypes. A download counter can be shown on the post and admin area.