Simplest way is to go to the homepage and there is a link in the upper left corner to help support SOI. I've now added the "Support SOI" block to the forums pages as well so it will appear in the upper left area when you are in the forums and posts too.

You can also click this really long link here:

https://www.amazon.com/ref=as_li_ss_tl?_encoding=UTF8&camp=1789&creative...

Hope you are doing well and thanks for thinking about supporting SOI.