This guide is for how to post photo's, and how to resize them using Photobucket. Other sites may have a similar process of what is covered here, but this is not guaranteed.
Step 1:
Open an account with
www.photobucket.com or any other photo/video hosting website you may like.
Step 2:
Follow the instructions on the website on how to upload you photo.
Step 3:
Go to the photo you wan't to post up here and look for this highlighted code:
Be sure that it's the code that has the "[IMG]" tags at the beginning and end of the address. Once you find that code, copy it to your clipboard.
Step 4:
In your post/thread, paste the code. You're done!