make extra money

I think that what you say is true. But there is one restriction: you can't upload your photos into a response or comment unless you have more than 500 posts. But it isn't a impediment for you, as you already have 541 posts.

oh....so i need to post picture relating to the topic that i discusse to gain extra earnings..tnx for the information

HI, Good morning ,yes if you are uploading the photos related with the discussion subject then surely there is increase in your earning.and your rating is above 500 then you can also upload images in your comment and responses. and you can also add photos separately without any discussion or comment or response but you did not understand still then you should read the guidelines related to photos http://www.mylot.com/o/photoguidelines.aspx hope you will understand that.