Can we take any legal action if someone steal our contents

I have two Qns,

1.
Can we take any legal action if someone steal our contents in the wesite articles?..

I have added a copyscape.com banner there…

and a copyright info also…

But there is no evidence to proove that itz my content, OR IT WAS FIRST CREATED BY ME…right?

So the thieves can easily take that data… i think so…

What can i do to prevent this…???

Plz help…

**2. **
I created a wesite on a [COLOR=black][FONT=Verdana]Celebrity and i used many comments and blogs of many ppl to add in my article…[/FONT][/COLOR]
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[COLOR=black][FONT=Verdana]BUT ADDED the source link also under that content with the sentence: from this blog… posted by this man…[/FONT][/COLOR]
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[COLOR=black][FONT=Verdana]Is there any problem in doing that???[/FONT][/COLOR]
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[COLOR=black][FONT=Verdana]Can i receive advertisements from somebody…??? (i asked this. bcoz some others’ content are there)[/FONT][/COLOR]
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[COLOR=black][FONT=Verdana]Plz Help me…:mario:[/FONT][/COLOR]
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