Is there a quick way to make a thumbnail of an image that visitors can then click on if they choose to view the "original" image? Alot like how google/4chan does it.
Upload it on image hosting site like imageshack dot us.. after you upload, there will be an instant thumbnail..
Wordpress also have a built in function. The alternative is to photoshop it, open the image in photoshop, then go Image -> Image Size and change the width to about 100, the height will auto adjust. Then save the image and upload it.