Changing icons on the Mac

I wanted to drag two internet / URL shortcuts to my Dock for easy access, but they ended up looking like this:

Because they had the same icon, I couldn't visually distinguish one from the other unless I hovered my mouse pointer over them.

I thought of giving each a different icon, and these two articles helped in my endeavor:

• "How do I change my Mac OS X hard drive icon?" by Dave Taylor.
• 'How To: Change Icons" by Pimp My Mac.

My new customized Dock icons for the Internet Shortcuts now look like this.

For the example shown above, I took the icons from the following sites:

• Star Trek – by The Iconfactory.
• Pirates – by GaryG on InterfaceLIFT.
• Monoliff! at Panic: The Mendelini Blog.

Here's a screenshot of the Star Trek icon set by The Iconfactory.