How can I protect my website?

[Sliight]

Now that I've become active in certain forums, and have been rated in search engines I have a few questions. This is coming from zero experience, so please treat this question as newbie as it sounds :)

Are there risks to my website I should know about?

Are there things I can do to help protect my website? (other than having a solid password to gain entry)

Is there a way to discover if someone is linking to my page to imbed content in thier page? (typically I've seen this done with images)

Is there anything that I've missed that I need to know?

I appreciate any input...thank you!

[Twey]

Are there things I can do to help protect my website? (other than having a solid password to gain entry)"Protect?" Security flaws come from programming errors; if you write a piece of software that's absolutely perfect, it'll be perfectly secure. Of course, we all know that there's no such thing as perfect software :) You should also keep track of updates to the software on your server for the same reasons: they often contain bugfixes.
Is there a way to discover if someone is linking to my page to imbed content in thier page? (typically I've seen this done with images)You can check the Referer header to make sure it contains an URL on your site. That's not perfect, though: it's stripped by some firewalls and proxies, so don't go disabling things on the basis of it. You'll annoy people.

[Sliight]

So in general, there's no inherant risks to my website? Other than someone hacking the password and having their way with it?

[Twey]

Aye -- not with the website itself. The only risks are those you write, intentionally or otherwise.