Why my post been deleted?

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I post a discussion about autosurf this morning(Australia time), and due to make the explanation clearly, I put my homepage's(which I made by myself) link in that post. Because I have made a detailed introduction about two French autosurf sites in my homepage. I did pictures and texts to introduce them, because I know so many people do not understand French. Actually, I don't understand French too. But it doesn't affect me earn Euro from French sites. I don't need understand French, I only need know how to register and how to earn money. It's simple. But this post been deleted after few hours. So I just want know, can we put our homepage's link in our post? Or we can not put any link in the post?