Messages -- Through messages you can contribute new information, your opinion or considerations. Good messages will influence the market prices. Therefore you should do your trades before contributing messages so you can profit from it.
Comments -- Reply to messages to contribute supporting or contradicting information.
Rating -- Rate contribution by using the plus and minus signs to the right of each message or comment, thus expressing assent or dissent with an information or opinion. Please be polite and explain yourself when rating someone's comment negatively.
Follow -- By following questions or topics, your personal "Newsfeed" section will show all messages and comments for them. Through your "Notification" settings you can ask Prediki to notify you via e-mail about such messages.