Go to Picnik and create the picture for your button. You can import a photo and edit it by adding words. The photo can be you, it can be your logo, or it could even be two pictures, although for a button I would suggest just using one. After you are finished and you have it just the way you want it, go ahead and save it.
Go to photobucket and upload the picture. There will be a box that says "share this image". You want to copy the html code line.
Below is the HTML code for the Allied Moms button. Take that html code line and paste it into a blank word processor, like notepad. Replace http://www.alliedmoms.com with your URL(web page address). Now replace the photobucket code with your photobucket code that you copied earlier.
* Make sure you keep your html code and URL within the quotes.
Now you have an Ad "button"
Extra Tip: Make sure you make the button 125x125 when you are in Picnik before you save it and before you upload it to photobucket. Also, it is often best to use a logo you already have, or a word phrase instead of a detailed picture since it will not be very large-you want something that is attention grabbing and easy to read/understand.