Do you need to be licensed to give stock/investment advice?

There are millions of “stock advice” websites out there that charge $15-$200 per month for advice on short and long term stock picks. Can anyone write an article and give their own advice or do you need to be licensed (series 7? 13?) Any help would be appreciated.

Do you need to be licensed to give someone investment advice?

People can sell books about investing without being a licensed financial planner. but if i am simply offering advice on a web site and sharing my findings with the public, can i become liable even if i am not taking any money from anyone?