how to earn money in internet

Your options basically are:

1) Sell a physical or digital product on the internet.
-- Affiliate with a store like Amazon and get commissions
-- Drop shipping business
-- Create and sell a product

2) Sell a service on the internet
-- Freelance jobs on sites like elance or rentacoder
-- Establish a consulting business whose services are sold over the internet

3) Sell advertisements
-- Create quality content and sell advertising while giving the content away on the internet for free
-- Create a dynamic site that users can use for free and monetize user-created content with ads.

Work from home, make money from your Website, join affiliate programs, summer jobs, seasonal jobs, get paid to take online surveys, get paid by reading email, get paid by surfing the Web, money making tutorials, earn revenue by placing ads on your Website, advertisement programs, get a fee to refer customers, receive commission for offering custom builds, etc.