How can I apply for lottery?

I wan H1B visa for working in USA. So how can I apply for lottery? Currently I can not apply because of I don’t have any sponsor. So what will be the procedure for applying for the lottery. From which site I can apply and when I can apply ?

You need to find an employer who is willing to sponsor your H-1. That’s the first step. You can search for employers through your network or friends, family or colleagues or on job portal sites. However, be sure to carefully scrutinize each employer as not all employers have your best interest in mind.

Once selected, they can apply for H-1 for you. This can now be done in April 2017.