CSS TUTORIAL
Basically, an iframe is a webpage inserted into another webpage. For an example, visit ~*~HTML~*~. If you click on Me, My Diary, Email, Content, etc. you will see that a new page loads in the little box above it. You can either make the iframe load more pages or you can leave it the way it is and tweak it so that it blends in perfectly with your diary description page.

There are a couple different codes you'll need:

The code to insert an iframe

<iframe src="URL OF STARTPAGE" width="WIDTH" height="HEIGHT" frameborder="BORDERTYPE SIZE COLOR" name="NAME"></iframe>

URL of startpage; You have to give a page for the iframe to load, like http://www.wimpy.com/username or whatever it is that you want to be there.
width; how wide you want the iframe to be. It can be small for smaller images and text, or large for larger images (so it won't scroll.)
height; how tall you want the iframe to be.
Bordertype size color; I remember this part of the code not always working, but it's been a while since I've used it. You can put something like solid 1pt blue or whatever looks good.
NAME; If you're going to have multiple iframes on your diary and are going to have links going to different ones so each one loads a different page, you will need to name them. I usually use frame1 and frame1, and so forth.

The second piece of code you need to use (if you want to have links that make pages load in the iframe) follows:

<a href="URL TO LOAD" target="NAME OF IFRAME">LINKED TEXT</a>

URL to load; The URL of the page that you want to load in the iframe
Name of Iframe; The name of the iframe you want the page to load in
Linked Text; what you want the link to say

Is it confusing enough for you? It gets MUCH easier from here.

A few things to remember:
• you need to have the same css design as the rest of your page if you want it to blend in
• If you have an image or line of text that is bigger than the iframe, it will have scrollbars, and when you have to scroll to see the rest of a pic, it's VERY annoying.
• A lot of free hosts like Tripod.com and Geocities.com have advertising on each page, so you might want to set your page to have on-page (not pop-up) advertising, and then use the code to get rid of the ads and THEN use the code for pictures that is generally used in entries. (Starts with a P... blah.. if anyone wants it, I'll post it someday.)
• There was one more thing but I forgot =(