Copyright to website?

[BartyBoy]

If someone take a screen shot of a web page of my website and publish the shot on their website, is it fair to say they have breached the copyright law?

And in the same theory, would 'copy & paste' some text contents of my website to a forum by soneone without permission breach the copyright law too?

And the URLs?

Many thanks!
Well, a stamp forum owner has taken a screenshot of my web page and posted it to his forum without my permission. Then he also added a hyperlink of my website to his forum. Finally, he searched the domain name of my website on nominet.org.uk and published my full name and home address on his forum. I just need to know where I stand on this one!