Beware of Scams advertised in Apsense

I have been in Apsense for a period of some 20 days. I like this one very much. But nowadays I am reading some blogs and some ads here that are purely scams and they first ask money (from $5 to $35) first and there is no guarantee that you get anything from what you invest and also beware payment proofs are made in photoshop by altering and modifying. Those programs which ask money first to join specially the sites you do not know and browsing for the first time probably are scams. So I request all my friends here that please be aware of scams and even if your friend asks to join or try to convince you to join first get some authentic survey or search in Google or yahoo or any other search engine and after thorough confirmation join and deposit money. One of my friend has been scammed in such a program so please beware of scams.