Businesses are always interested in promoting the products and services which they sell, making people aware of these products and services. So they are increasingly using advertising services like Rotate4all and Leadsleap.
Rotate4all has a CPM of $0.3 , it will pay $0.3 for every thousand unique visitors
So using credits or PTC advertising, online publishers can make some profit.
At present Zerads is one of the cheapest online advertising services, with one click costing $0.00005
Though some clicks are not valid, for every valid visitor, the user is credited $0.0003
To fund your Zerads account, users can register for a free account at zerochain.info
They can then convert or swap Litecoin for Zerocoin at zerochain.info
Users who do not have Litecoin balance can make some litecoin easily using various websites which are listed at Free Earning Online
Hence it is possible to make a small profit using a combination of Rotate4all and Zerads