Imagine that you use thousands of Instagram accounts to provide marketing tool for your clients. How will you manage these accounts and not blocked by Instagram? Only one way is to use residential IP that can helps you to hide your real server IP address behind IP of our network.
For example you need to register tons of different email addresses to make your advertising company more effective. No any mail service like Gmail, Hotmail will allow you to register 1000 mail boxes from one PC. What you should do? You purchase proxy package and setup your bots (like xrumer) to registering mail boxed using proxies. What you get? You get 1000 successfully registered addresses in a minutes without any difficulties. Bingo! If you not use proxy - you will able to register 1 box only.
How it helps with Amazon, Ebay and other internet shops? You can simply compare prices on same products using service that changes your IP and not be banned by these organisations. Than cheaper price - than more profit for you.
With Facebook same situation like with Instagram - you can manage tons of different accounts for promotions just using one PC, not 10000.
We have millions of residential proxy in about 170 countries all over the world. Top countries where proxy IPs comes from are USA, UK, Canada, Germany and many other tier-1 countries in Europe, America.
Be in touch with modern technologies how to hide your real IP address behind of proxy network and use cosmoproxy proxy service