You can place pictures in your post, Avatars and
Signatures
How to Copy a URL:
Step 1: Find the picture you want to use on the internet
Step 2: Right mouse click on the picture to bring up the menu.
Step 3: Click on the
Properties tab.
Step 4: Highlight the URL.
Step 5: Repeat
Step 2 and select
Copy
You will now be able to paste the URL in your posts or
Signatures.