DISQUS - Disqus is a global comment system that improves discussion on websites and connects conversations across the web.

ARPAY - Buy gift cards at ar-pay.com, which allow you to access your favorite internet services: online games, e-wallets and console games, online shopping cards and many more!

Hyvor Talk - The Best Commenting Platform For Your Website

G2A - Enjoy the vast offer of Steam, Origin, Uplay, Battle.net, GOG, PSN and XBOX CD-Keys at the most attractive prices on the market. Don’t overpay – buy cheap on G2A.COM!

Commento - A fast, bloat-free comments system to foster discussion on your website

Kinguin - Marketplace to buy/sell game keys for a myriad of platforms including: Battle.